279954 / 944260310110
2022-05-04·BA00·III·en·00
Product Selection and Project Engineering
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CPU module for Zone 1
Series 9442/32
Equipping and permissible mounting conditions
• Adhere to maximum equipping and module assignment per socket:
- For a socket with three slots:
2 CPU modules and 1 power module (CPU redundancy) or
1 CPU module and 2 power modules (power redundancy)
- For a socket with four slots:
2 CPU modules and 2 power modules (system redundancy)
• Only mount one socket for each BusRail.
• Mount a maximum of 16 I/O modules for each BusRail. The maximum number of
I/O modules that can be installed is also dependent on the communication protocol and
functions being used in each case. For details on this, see the corresponding
IS1+ coupling descriptions.
• Adhere to the maximum system length (B BusRail extension) of 3 m.
• Secure all connection lines against tensile load and scuffing.
• Plan a distance of at least 50 mm for intrinsically safe and non-intrinsically safe electrical
circuits.
Project engineering specifications depending on the ambient temperature
Adjust mounting processes based on the maximum ambient temperature,
see the "Technical data" chapter.
Updating/replacing modules
Observe chapter 6.2.
5.1
Terminal Assignment for Sub-D Slot X1
For connecting the PROFIBUS DP:
DANGER! Explosion hazard due to incorrect electrical project engineering!
Non-compliance results in fatal or severe injuries.
▶
Only plan and connect intrinsically safe connections for the CPU module.
Pin no.
Function
Description
12224E00
3
RxD/TxD (+)
Data B (+)
5
GND
Reference potential
for device interface
6
PWR (+)
Supply voltage
(device)
8
RxD/TxD (-)
Data A (-)
Remaining pins
–
Not connected
5 3
8 6
Summary of Contents for 279953
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