Interface
PIN
Signal
Description
8
NC
Not connected
Shield
Cable shield
Functional earth
In corrosive environment, please protect unused connectors using the TA535
accessory.
Not supplied with this device.
For further information regarding wiring and cable types see chapter Ethernet
Chapter 2.6.4.7 “Ethernet connection details” on page 997.
1.7.4.1.4 Internal data exchange
Parameter
Value
Digital inputs (bytes)
3
Digital outputs (bytes)
3
Analog inputs (words)
4
Analog outputs (words)
2
Counter input data (words)
4
Counter output data (words)
8
1.7.4.1.5 Addressing
The module reads the position of the rotary switches only during power-up, i. e.
changes of the switch position during operation will have no effect until the next
module initialization.
The IP address of the CI521-MODTCP Module can be set with the "ABB IP Configuration Tool".
If the last byte of the IP is set to 0, the address switch will be used instead.
Address switch position 255 is mapped to fixed IP 192.168.0.254 independent of other stored
settings. This is a backup so the module can always get a valid IP address and can be
configured by the “ABB IP Configuration Tool”.
Address switch position 0 is mapped to last byte equal 1 and DHCP enabled.
The factory setting for the IP is 192.168.0.x (last byte is address switch).
1.7.4.1.6 I/O configuration
The CI521-MODTCP stores configuration parameters (IP address configuration, module param-
eters).
The analog/digital I/O channels are configured via software.
Device specifications
Communication interface modules (S500) > Modbus
2022/01/31
3ADR010278, 3, en_US
748
