4 Table of Contents WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485
Manual
Version 1.4.0
5.1.4 RS-485 Operating Mode..................................................................... 36
5.1.5 RS-422 Operating Mode..................................................................... 36
5.1.6 DMX Operating Mode ....................................................................... 36
5.2 Data Exchange Operating Mode ............................................................. 37
6 Mounting ..................................................................................................... 38
6.1 Mounting Sequence ................................................................................. 38
6.2 Inserting and Removing Devices ............................................................ 39
6.2.1 Inserting the I/O Module .................................................................... 39
6.2.2 Removing the I/O Module .................................................................. 40
7 Connect Devices ......................................................................................... 41
7.1 Connecting a Conductor to the CAGE CLAMP
®
................................... 41
7.2 Connection Examples .............................................................................. 42
7.2.1 RS-232 Operating Mode..................................................................... 42
7.2.2 RS-485 Operating Mode..................................................................... 43
7.2.3 RS-422 Operating Mode..................................................................... 44
7.2.4 DMX Operating Mode ....................................................................... 45
7.2.5 Data Exchange Mode ......................................................................... 45
8 Commissioning ........................................................................................... 46
8.1 Configuration and Parameterization with WAGO-I/O-CHECK ............. 46
8.1.1 RS-232 / RS-485 Serial Interface (Configuration Dialog) ................. 46
8.1.2 Toolbar on the Configuration Dialog ................................................. 47
8.1.3 Process Image Size ............................................................................. 48
8.1.4 Parameter Range ................................................................................. 49
8.1.5 Setting the RS-232 / RS-485 Serial Interface ..................................... 50
8.2 Configuration and Parameterization via GSD for PROFIBUS DP and
PROFINET IO ........................................................................................ 51
8.3 Data Transfer ........................................................................................... 51
8.3.1 Example of Operating Modes for Serial Transmission ...................... 51
8.3.2 Initialization ........................................................................................ 52
8.3.3 Transmission of the Character String "Hello World!" ....................... 53
8.3.4 Receiving the Character String "WAGO" .......................................... 54
8.3.5 Operation with Continuous Send........................................................ 55
8.3.5.1 Transmission of a Block of One to 512 Bytes ............................... 55
8.3.5.2 Transmission of a Block of More than 512 Bytes ......................... 55
8.3.6 DMX Application Example ................................................................ 57
8.3.6.1 Operation with Deactivated Continuous Send ............................... 57
8.3.6.2 Operation with Activated Continuous Send .................................. 57
8.3.7 Data Exchange Operating Mode Application Example ..................... 58
9 Diagnostics .................................................................................................. 59
9.1 Serial Operating Modes ........................................................................... 59
9.2 Data Exchange Operating Mode ............................................................. 59
10 Use in Hazardous Environments .............................................................. 60
10.1 Marking Configuration Examples ........................................................... 61
10.1.1 Marking for Europe According to ATEX and IEC-Ex ...................... 61
10.1.2 Marking for America According to NEC 500 .................................... 66
10.2 Installation Regulations ........................................................................... 67