WAGO-I/O-SYSTEM 750 Table of Contents 3
750-652 Serial Interface RS-232 / RS-485
Manual
Version 1.4.0
Table of Contents
1Notes about this Documentation................................................................. 6
1.1 Validity of this Documentation................................................................. 6
1.2 Copyright................................................................................................... 6
1.3 Symbols..................................................................................................... 7
1.4 Number Notation....................................................................................... 9
1.5 Font Conventions ...................................................................................... 9
2Important Notes ......................................................................................... 10
2.1 Legal Bases ............................................................................................. 10
2.1.1 Subject to Changes ............................................................................. 10
2.1.2 Personnel Qualifications..................................................................... 10
2.1.3 Use of the WAGO-I/O-SYSTEM 750 in Compliance with Underlying
Provisions ........................................................................................... 10
2.1.4 Technical Condition of Specified Devices......................................... 11
2.2 Safety Advice (Precautions).................................................................... 12
3Device Description ..................................................................................... 14
3.1 View ........................................................................................................ 18
3.2 Connectors............................................................................................... 19
3.2.1 Data Contacts/Internal Bus................................................................. 19
3.2.2 Power Jumper Contacts/Field Supply ................................................ 20
3.2.3 CAGE CLAMP®Connectors ............................................................. 22
3.3 Display Elements .................................................................................... 23
3.4 Operating Elements................................................................................. 24
3.5 Schematic Diagram ................................................................................. 24
3.6 Technical Data ........................................................................................ 25
3.6.1 Device Data ........................................................................................ 25
3.6.2 Supply................................................................................................. 25
3.6.3 Communication .................................................................................. 25
3.6.4 Interface.............................................................................................. 26
3.6.5 Connection Type ................................................................................ 26
3.6.6 Climatic Environmental Conditions................................................... 26
3.7 Approvals ................................................................................................ 27
3.8 Standards and Guidelines........................................................................ 28
4Process Image ............................................................................................. 29
4.1 Operating Modes for Serial Transmission .............................................. 29
4.2 Data Exchange Mode .............................................................................. 31
5Function Description ................................................................................. 33
5.1 Operating Modes for Serial Transmission .............................................. 33
5.1.1 Transmit Data ..................................................................................... 33
5.1.1.1 Continuous Transmission .............................................................. 33
5.1.2 Receive Data....................................................................................... 34
5.1.2.1 Continuous Receipt........................................................................ 34
5.1.3 RS-232 Operating Mode..................................................................... 35
5.1.3.1 Flow Control Using XON-/XOFF Protocol .................................. 35
5.1.3.2 Flow Control Using RTS/CTS....................................................... 35
5.1.3.3 Flow Control Using RTS/CTS, RTS with Lead/Follow-on Time. 35
