Centralized Configurations - Siemens SIMATIC S5-115F User Manual

S5-115F Manual
3.2.5

Centralized Configurations

A central controller connected to as many as three expansion units makes up a centralized con-
figuration. Use only the IM 306 interface module to connect an ER 701-1 mounting rack. If a 463
analog input module is to be plugged into the expansion unit, an ER 701-3 without power supply
module must be used. Please note the following when installing the IM 306:
• Number of EUs:
• Total cable length:
• Slot addressing:
• Power supply to the EUs:
ER 701-1 or
ER 701-3
ER 701-1 or
ER 701-3
ER 701-1 or
ER 701-3
CR 700-2F or
ER 701-2 or
ER 701-3
1 You can also order a 1.25m (4.1 ft.) 705 connecting cable (Order No.: 6ES5 705-0BB20), and use it to mount two EUs
next to each other.
2 Only in the CR 700-2F central controller rack
Figure 3-21. Centralized Configuration with the IM 306 Interface Module
* The EU with the highest current should be located as closely as possible to the CC.
EWA 4NEB 811 6148-02
max. 3
max. 2.5 m (8.2 ft.)
variable (in the case of the CC and the EU)
max. 2 A*
1
705 Connecting cable
IM 306 Interface Module
Central Processing Unit
Power Supply Module
Installation Guidelines
2
3-21