Siemens SIMATIC 200SP - Communications Module Manuals

Supplements to ET 200SP documentation
2.4 I/O module manuals
Product information on the documentation of the ET 200SP distributed I/O system
44 Product Information, 09/2019, A5E03799595-BD
Manual for AQ 2xU/I HF, Edition 02/2014
Section 3.1 Wiring and block diagram, pin assignment
You can now also use the 3-wire connection in addition to the 2-wire and 4-wire connection
for the analog module AQ 2xU/I HF.
Pin assignment for AQ 2xU/I HF
Explanation
Voltage 2-wire connec-
tion
Voltage 3-wire connec-
tion
Voltage 4-wire connec-
tion
• Qn+: Analog output voltage/current
(positive), channel n
• Qn-: Analog output voltage/current
(negative), channel n
• Sn+: Sensor line positive, channel n
• Sn-: Sensor line negative, channel n
The 3-wire connection and 4-wire connection make compensation for line impedance
possible. The compensation is not possible for 2-wire connections due to the missing sensor
cable.
2.4.3 Communications module manuals
Communications module CM DP, Edition 12/2014
The communications module CM DP supports the PROFIsafe protocol V2.
Exception: Fail-safe modules that only support PROFIsafe V1 mode.