1
AC500-eCo processor module with option boards, different memory sizes, inputs and out-
puts available
2
S500-eCo I/O module, up to 10 I/O modules can be connected, also for decentralized
extension
3
Terminal blocks in different variants available
Processor modules with an I/O bus interface on the right side can be expanded by up to 10 I/O
modules to increase the number of the I/O channels.
Fig. 3: I/O modules (S500-eCo) directly connected to an AC500-eCo processor module
Up to 10 I/O modules can be connected remotely with the onboard Ethernet interface. Usually, a
Modbus/TCP communication interface module or a processor module is used for the decentral-
ized I/O extension.
Centralized I/O
extension
Decentralized
I/O extension
System overview
AC500-eCo/S500-eCo system structure
2023/03/03
3ADR011074, 1, en_US
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