Austdac HBTX8D is an eight-channel digital transmitter designed for use in industrial automation applications. It is capable of transmitting digital signals over long distances using the HubBus protocol. The HBTX8D can be used to monitor and control a variety of devices, such as sensors, actuators, and PLCs.
Some of the key features of the HBTX8D include:
- Eight channels of digital input
- Configurable contact type (NO or NC)
- Interrupt mode for real-time response
- Modbus RTU support for remote monitoring and control
The HBTX8D is a versatile device that can be used in a variety of applications. It is ideal for use in harsh environments, as it is resistant to dust, moisture, and vibration. The HBTX8D is also easy to install and configure, making it a great choice for users of all skill levels.
Austdac HBTX8D is an eight-channel digital transmitter designed for use in industrial automation applications. It is capable of transmitting digital signals over long distances using the HubBus protocol. The HBTX8D can be used to monitor and control a variety of devices, such as sensors, actuators, and PLCs.
Some of the key features of the HBTX8D include:
- Eight channels of digital input
- Configurable contact type (NO or NC)
- Interrupt mode for real-time response
- Modbus RTU support for remote monitoring and control
The HBTX8D is a versatile device that can be used in a variety of applications. It is ideal for use in harsh environments, as it is resistant to dust, moisture, and vibration. The HBTX8D is also easy to install and configure, making it a great choice for users of all skill levels.
1 OF 24
Title
HUBBUS
EIGHT CHANNEL DIGITAL TRANSMITTER
TYPE HBTX8D
USER MANUAL
Document Number
125-257-12
Issue
01
HubBus Eight Channel Digital Transmitter 2 OF 24 125-257-12
HBTX8D USER MANUAL Issue: 01
Revision Control
01 Release 2020.10.28 NI NI PC
Issue Details Date Written Designed Approved
Austdac Pty Ltd
Unit 1 / 42 Carrington Road
Castle Hill NSW 2154
Australia
PO Box 6486
Baulkham Hills Business Centre
NSW 2153
Australia
Phone: + 61 2 8851 5000
Fax: + 61 2 8851 5001
Website: www.austdac.com.au
Copyright 2020
This document remains the property of Austdac Pty. Ltd. It is subject to its recall and must not be reproduced
in part or whole or its contents divulged to third parties without prior written approval from Austdac Pty Ltd.
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HBTX8D USER MANUAL Issue: 01
TABLE OF CONTENTS
Revision Control ............................................................................................................................. 2
TABLE OF CONTENTS .................................................................................................................. 3
TABLES .......................................................................................................................................... 5
FIGURES ........................................................................................................................................ 5
1 Introduction .................................................................................................................................. 6
1.1 Background and Context ....................................................................................................... 6
1.2 Purpose................................................................................................................................. 6
2 Warnings and Precautions ........................................................................................................... 7
2.1 Warnings ............................................................................................................................... 7
2.2 Symbols ................................................................................................................................ 7
2.3 Precautions ........................................................................................................................... 7
2.3.1 USER ACCESS .............................................................................................................. 8
2.3.2 STORAGE, INSTALLATION, USE AND MAINTAINANCE REQUIREMENTS ................ 8
2.3.2.1 Storage ............................................................................................................... 8
2.3.2.2 Installation and conditions of use ........................................................................ 8
3 Overview ...................................................................................................................................... 9
3.1 General Description .............................................................................................................. 9
3.2 Operation ............................................................................................................................ 10
4 Installation .................................................................................................................................. 11
4.1 Enclosure ............................................................................................................................ 11
4.2 Mounting ............................................................................................................................. 11
4.3 Terminals ............................................................................................................................ 11
5 Front Panel ................................................................................................................................ 12
5.1 Outer ................................................................................................................................... 12
5.1.1 LEDS ............................................................................................................................ 12
5.1.1.1 STAT ................................................................................................................ 12
5.1.1.2 SYNC ............................................................................................................... 12
5.1.1.3 +V ..................................................................................................................... 13
5.1.1.4 Rx ..................................................................................................................... 13
5.1.1.5 Tx ..................................................................................................................... 13
5.1.1.6 (1) ..................................................................................................................... 13
5.1.1.7 (2) ..................................................................................................................... 13
5.1.1.8 (3) ..................................................................................................................... 13
5.1.1.9 (4) ..................................................................................................................... 13
5.2 Inner .................................................................................................................................... 14
5.2.1 Power Source Selection ............................................................................................... 14
5.2.2 Config Port ................................................................................................................... 14
6 Terminals ................................................................................................................................... 15
6.1 Type .................................................................................................................................... 15
6.2 Layout ................................................................................................................................. 15
6.2.1 Power ........................................................................................................................... 15
6.2.2 HubBus ........................................................................................................................ 15
6.2.3 MODBUS ..................................................................................................................... 15
6.2.4 DIN Rail Bus ................................................................................................................. 16
6.2.4.1 HubBus module auxiliary power (10-48VDC) .................................................... 16
6.2.4.2 RS485 MODBUS .............................................................................................. 16
6.2.4.3 HubBus Signal .................................................................................................. 16
6.2.5 Input +/- (1 to 8) ............................................................................................................ 16
7 Configuration and Parameters ................................................................................................... 18
7.1 Configuration Process ......................................................................................................... 18
7.2 Parameter Overview............................................................................................................ 18
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7.2.1 Status Output HubBus Address .................................................................................... 19
7.2.2 Contact Type ................................................................................................................ 19
7.2.3 Interrupt Mode .............................................................................................................. 19
7.2.4 Modbus Parameters ..................................................................................................... 19
7.2.4.1 Modbus Address ............................................................................................... 19
7.2.4.2 RS485 Enable .................................................................................................. 19
8 MODBUS ................................................................................................................................... 21
8.1 Physical Layer ..................................................................................................................... 21
8.2 MODBUS Registers ............................................................................................................ 21
8.2.1 Device Identification ..................................................................................................... 22
8.2.2 Information ................................................................................................................... 22
8.2.3 HubBus Digital.............................................................................................................. 23
8.2.4 HubBus Datalink ........................................................................................................... 23
9 Specifications ............................................................................................................................. 24
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HBTX8D USER MANUAL Issue: 01
TABLES
Table 1: STAT LED ....................................................................................................................... 12
Table 2: SYNC LED ...................................................................................................................... 12
Table 3: +V LED ........................................................................................................................... 13
Table 4: Rx LED ........................................................................................................................... 13
Table 5: Tx LED ............................................................................................................................ 13
Table 6: (1) LED ........................................................................................................................... 13
Table 7: (2) LED ........................................................................................................................... 13
Table 8: (3) LED ........................................................................................................................... 13
Table 9: (4) LED ........................................................................................................................... 13
Table 10: HBTX8D Terminals ....................................................................................................... 15
Table 11: Parameter – HubBus Output Address ........................................................................... 19
Table 12: Parameter – Contact Type ............................................................................................ 19
Table 13: Parameter – Interrupt Mode .......................................................................................... 19
Table 14: Parameter – Modbus Address ....................................................................................... 19
Table 15: Parameter – RS485 Enable ........................................................................................... 20
Table 16: Modbus Registers – Device identifier ............................................................................ 22
Table 17: Modbus Registers – Information Data ........................................................................... 23
Table 18: Specifications ................................................................................................................ 24
FIGURES
Figure 1: HubBus eight channel digital transmitter .......................................................................... 9
Figure 2: HubBus Eight channel Transmitter Block Diagram ......................................................... 10
Figure 3: Front panel ..................................................................................................................... 12
Figure 4: Display and interface board............................................................................................ 14
Figure 5: Terminal Plug ................................................................................................................. 15
Figure 6: Contact Input ................................................................................................................. 16
Figure 7: NPN Input ...................................................................................................................... 17
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1 Introduction
1.1 BACKGROUND AND CONTEXT
HubBus is Austdac's long distance distributed I/O system used in a wide range of
applications in non-hazardous environments. HubBus overcomes the limitations of other
distributed I/O systems in terms of noise immunity from new variable frequency drives,
number of channels for input and output devices, transmission distances on large
overland conveyors and powering devices from the communications line.
1.2 PURPOSE
This document is the user’s manual for the HubBus eight channel digital transmitter
(HBTX8D). It provides an overview and a detailed description of the installation, use and
operation of the HubBus eight channel digital transmitter.
This document does not contain detailed information concerning the operation of the
HubBus system. Refer to the “HubBus System Description and Overview” user’s manual
(125-250-12) for detailed information on HubBus. Likewise, refer to the HubBus Safety
Manual (125-NNN-12) for any functional safety related specifications.
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2 Warnings and Precautions
2.1 WARNINGS
WARNING: The HubBus Signal –ve line must not be tied to any common, 0V, ground or
Earth points.
WARNING: Do not use the same power supply as the channel generator. Any other
modules or equipment must be galvanically isolated from the HubBus channel
generators power source.
WARNING: The HubBus power source "Line-Ext" switch above the configuration port
connector should be switched to the RIGHT side (Ext) if using an external
power supply.
WARNING: If the HBTX8D is used in a manner not specified by Austdac then the
protection provided by the HBTX8D may be impaired.
WARNING: This product may contain chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
2.2 SYMBOLS
Markings that may be used across the HubBus range of products to indicate precautions
that must be taken to maintain safe operation of the system.
Direct Current (DC) Supply
Earth (ground) Terminal
Caution, possibility of electric shock
Caution (refer to user manual)
2.3 PRECAUTIONS
• Only qualified personnel shall install and service the HBTX8D.
• Mains supply fluctuations are not to exceed ±10% of the nominal supply voltage.
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HBTX8D USER MANUAL Issue: 01
2.3.1 USER ACCESS
There are no user serviceable parts within the HBTX8D. The user should not open
or disassemble the HBTX8D.
2.3.2 STORAGE, INSTALLATION, USE AND MAINTAINANCE REQUIREMENTS
The HBTX8D should only be installed, operated and maintained by qualified
personnel in accordance with the condition of safe use as outlined in the certificate.
Ensure that all instructions and warnings are observed.
2.3.2.1 Storage
The specified storage temperature must be maintained during storage.
2.3.2.2 Installation and conditions of use
Prior to installation the HBTX8D should be inspected for the following;
• Any external damage to the enclosure.
The HBTX8D may be installed in any orientation.
The HBTX8D must be installed in a suitably certified IP54 or better
enclosure or as required by legislation. The enclosure should provide
adequate protection, from impact and ingress of dust and water.
The HBTX8D should be mounted to a stable surface avoiding areas under
constant vibration and shock.
HubBus Eight Channel Digital Transmitter 9 OF 24 125-257-12
HBTX8D USER MANUAL Issue: 01
3 Overview
3.1 GENERAL DESCRIPTION
HubBus eight channel transmitter with voltage free digital inputs. The HBTX8D may be
configured for use with contact or NPN transistor inputs.
Figure 1: HubBus eight channel digital transmitter
The digital transmitter may be line powered or use an external supply. It detects the
states of eight voltage free contacts and signals from devices with open collector NPN
transistor output, e.g. inductive proximity switches. Each input may be given a unique
HubBus transmission address to identify the specific input triggered. If an input is
configured it will transmit an “off” state if the input is not closed or not pulled low. An “on”
state will be transmitted if the input is closed or is pulled low.
The transmitter monitors for external wiring faults across inputs and for proper operation
of the detection and driver circuitry. If a fault is detected a “fault” state will be transmitted
on the allocated HubBus channel.
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HBTX8D USER MANUAL Issue: 01
Figure 2: HubBus Eight channel Transmitter Block Diagram
3.2 OPERATION
The eight channel digital transmitter scans each of its voltage free inputs’ states and
transmits the state onto the connected HubBus network. The HBTX8D scans the state of
all the inputs every 50ms as well as checking for faults such as internal faults in the driver
and detection circuitry and external shorts between the two contact inputs.
All configurable aspects of the two channel digital transmitter can be programmed via the
configuration port. The transmitter will auto configure and operate with the number of
channels and pulse bandwidth being transmitted by the channel generator.
Isolated
HubBus
Interface
HBTX8D
Main μC
External
12-48VDC
Power
Supply
HubBus
Power Supply
Modbus
RS485
RS485
Driver & Detection
Circuit 1
Contact / NPN Input
Driver & Detection
Circuit 2
Contact / NPN Input
Driver & Detection
Circuit 3
Contact / NPN Input
Driver & Detection
Circuit 4
Contact / NPN Input
Driver & Detection
Circuit 5
Contact / NPN Input
Driver & Detection
Circuit 6
Contact / NPN Input
Driver & Detection
Circuit 7
Contact / NPN Input
Driver & Detection
Circuit 8
Contact / NPN Input
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4 Installation
4.1 ENCLOSURE
The HBTX8D should be mounted in a host enclosure providing protection against dust
and moisture. A minimum ingress protection of IP54 is recommended.
4.2 MOUNTING
The HBTX8D should be mounted on an NS 35 DIN rail.
Optionally, a 16-position DIN rail connector can be inserted in the DIN rail. This serves to
establish automatic contact from device to device. The bus connector carries HubBus,
Modbus and power.
4.3 TERMINALS
All connections to the HBTX8D are via push-in spring terminal with tension sleeve around
the base of the DIN rail mounting enclosure.
• Maximum cross section of solid core conductor: 2.5mm2
• Maximum cross section of stranded conductor with ferrule: 2.5mm2
• Minimum cross section of solid core conductor: 0.2mm2
• Minimum cross section of stranded conductor with ferrule: 0.25mm2
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5 Front Panel
5.1 OUTER
As viewed with the top cover in place.
Figure 3: Front panel
5.1.1 LEDS
LED indicators give a quick overview of current system operational state.
5.1.1.1 STAT
Colour
Flash Rate
Description
GREEN
Flash
Communication to HubBus interface active and sync pulse detected.
RED
Solid
Lost communication to HubBus interface.
Table 1: STAT LED
5.1.1.2 SYNC
Colour
Flash
Rate
Description
YELLOW
Single
HubBus Sync pulse detected. Driven by the HubBus interface.
Double
HubBus interface board lost communication to main module. Check line power
switch.
Table 2: SYNC LED
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5.1.1.3 +V
Colour
Flash Rate
Description
GREEN
Solid
External power source good.
Table 3: +V LED
5.1.1.4 Rx
Colour
Flash Rate
Description
BLUE
Flash
MODBUS Receive, persistence of 100ms
Table 4: Rx LED
5.1.1.5 Tx
Colour
Flash Rate
Description
BLUE
Flash
MODBUS Transmit, persistence of 100ms
Table 5: Tx LED
5.1.1.6 (1)
Colour
Flash Rate
Description
YELLOW
Fast
Fault detected on input 1 or 2
Table 6: (1) LED
5.1.1.7 (2)
Colour
Flash Rate
Description
YELLOW
Fast
Fault detected on input 3 or 4
Table 7: (2) LED
5.1.1.8 (3)
Colour
Flash Rate
Description
YELLOW
Fast
Fault detected on input 5 or 6
Table 8: (3) LED
5.1.1.9 (4)
Colour
Flash Rate
Description
YELLOW
Fast
Fault detected on input 7 or 8
Table 9: (4) LED
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5.2 INNER
Module display board as viewed with the housing top cover opened.
Figure 4: Display and interface board
5.2.1 Power Source Selection
Power source selection:
A. Line: HubBus line powered
B. Ext: External power supply
5.2.2 Config Port
Four pin TTL level configuration port. This has the HubBus Modbus interface.
Using this port disables the watchdog (monitor) and the RS485 port.
Power
Selection
Config
Port
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6 Terminals
6.1 TYPE
The PCB terminal connector is a Phoenix Contact style with 5.08mm pitch. Austdac
supplies the module with a 90˚ free hanging push-in spring terminal plug.
Figure 5: Terminal Plug
6.2 LAYOUT
Table 10: HBTX8D Terminals
6.2.1 Power
Not available. Use line power or power externally from the DIN rail bus. See below.
6.2.2 HubBus
HubBus terminals for interfacing to the HubBus network. This port is electrically
isolated from all the other terminals on the HBTX8D module.
WARNING: The HubBus Signal –ve line must not be tied to any common, 0V, ground or
Earth points.
6.2.3 MODBUS
13 +Signal+ 1
14 -Signal- 2
15 +
16 -
17 +
18 -
19 + - 7
20 - + 8
21 + - 9
22 - + 10
23 ++V 11
24 -0V 12
Input 7
Input 8
Power
Input
Input 5
Input 6
Input 4
HBTX8D
HubBus
Input 1
Input 2
Input 3
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HBTX8D USER MANUAL Issue: 01
Not available. Use MODBUS interface via the DIN rail bus. See below.
6.2.4 DIN Rail Bus
To eliminate inter-module wiring a DIN-rail bus system may be used with the
HubBus modules. The DIN rail bus is used to distribute the following:
6.2.4.1 HubBus module auxiliary power (10-48VDC)
Any industrial rated power supply may be used. Other modules (except for
the channel generator) or equipment may be supplied from the same
source.
Operating Range: 10-48VDC
Recommended: 24VDC @ 5A (Omron S8VK-G24024)
6.2.4.2 RS485 MODBUS
This is an RS485 MODBUS port at 19,200bps used for configuration. The
HBTX8D is considered a slave device on the MODBUS network and
therefore must be interrogated by a master device. Refer to the
configuration section of this manual for instructions on setting network
addresses etc.
Port is disabled when the front panel configuration port is active.
This port is galvanically isolated from the HubBus network.
6.2.4.3 HubBus Signal
Same port as the above HubBus terminal.
6.2.5 Input +/- (1 to 8)
Wiring options for either a contact input or NPN style input are shown below.
Figure 6: Contact Input
Contact inputs are pulsed for 3ms every 50ms. The terminal open loop voltage of
3.3VDC with a maximum current of 33µA through the closed contact set.
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HBTX8D USER MANUAL Issue: 01
Figure 7: NPN Input
NPN inputs are also scanned at 50ms intervals but have a constant current source
at the terminal. They have a terminal voltage of 3.3VDC and draw 3.3mA when
pulled low by the NPN switch.
The status of the inputs is shown on the front panel LED indication and is available
as a HubBus channel or as a MODBUS register.
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7 Configuration and Parameters
The following are descriptions of system and device parameters. They are accessed via
MODBUS parameters described in the following section.
7.1 CONFIGURATION PROCESS
Configuration of safety devices follow the below process:
1. Enter the configuration option when the HHP1-H is connected to the device.
2. Scroll to the desired parameter to be modified.
3. The handheld will display the current value to the displayed parameter.
4. Press [ENTER] key to modify the parameter
5. Modify the parameter to the desired value.
a. Press [MENU] to cancel and revert to the previous configured value.
b. Press [ENTER] to accept the new value and send to device.
6. The value will be checked by the handheld and the device. If there are any
problems an error message will be displayed on the handheld indicating the type
of problem.
7. The new parameter value will be sent back to the handheld for visual confirmation
by the user.
8. The user will be prompted to:
a. Save the value by pressing the [ENTER] key, or
b. Revert back to the original value by pressing the [MENU] key
9. The handheld will now display the parameter value as store in non-volatile memory
in the device.
Note: Prior to disconnecting the handheld programmer, the user should verify
all safety parameters are correct and document any changes made.
Before restarting the system after making changes to safety parameters
the safety functions must be validated.
7.2 PARAMETER OVERVIEW
Input 1
Status
Address
Contact
Type
Interrupt
Mode
Input 2
Status
Address
Contact
Type
Interrupt
Mode
Input 3
Status
Address
Contact
Type
Interrupt
Mode
Input 4
Status
Address
Contact
Type
Interrupt
Mode
Input 5
Status
Address
Contact
Type
Interrupt
Mode
Input 6
Status
Address
Contact
Type
Interrupt
Mode
Input 7
Status
Address
Contact
Type
Interrupt
Mode
Input 8
Status
Address
Contact
Type
Interrupt
Mode
Modbus
Modbus
Address
Enable
RS485
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HBTX8D USER MANUAL Issue: 01
7.2.1 Status Output HubBus Address
State of the input to be transmitted by the HBTX8D.
Limit
Value
(channels)
Minimum
Disabled
Maximum
2048
Default
Disabled
Table 11: Parameter – HubBus Output Address
7.2.2 Contact Type
Each input must be configured as either contact type or NPN type.
Limit
Value
Minimum
‘Contact Type’
Maximum
‘NPN Type’
Default
‘Contact Type’
Table 12: Parameter – Contact Type
7.2.3 Interrupt Mode
Trigger interrupt transmission on contact change.
Option
Value
1
None
2
Emergency on contact open
3
Emergency on contact close
4
Auxiliary on contact open
5
Auxiliary on contact close
Default
None
Table 13: Parameter – Interrupt Mode
7.2.4 Modbus Parameters
These are the Modbus parameters.
7.2.4.1 Modbus Address
Modbus address parameter, care must be taken not to have multiple
devices with the same address on the bus.
Limit
Value
(seconds)
Minimum
1
Maximum
247
Step
1
Default
10
Table 14: Parameter – Modbus Address
7.2.4.2 RS485 Enable
This should only be enabled when the unit is not being used for a safety
function. It enables the Modbus RS485 port on the terminal connector and
DIN rail bus.
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HBTX8D USER MANUAL Issue: 01
Value
Meaning
Enabled
Port enabled
Disabled
Port disabled
Default
Disabled
Table 15: Parameter – RS485 Enable
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Austdac HBTX8D is an eight-channel digital transmitter designed for use in industrial automation applications. It is capable of transmitting digital signals over long distances using the HubBus protocol. The HBTX8D can be used to monitor and control a variety of devices, such as sensors, actuators, and PLCs.
Some of the key features of the HBTX8D include:
- Eight channels of digital input
- Configurable contact type (NO or NC)
- Interrupt mode for real-time response
- Modbus RTU support for remote monitoring and control
The HBTX8D is a versatile device that can be used in a variety of applications. It is ideal for use in harsh environments, as it is resistant to dust, moisture, and vibration. The HBTX8D is also easy to install and configure, making it a great choice for users of all skill levels.
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