3.3.2 External device interface
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You can connect various external devices to the external device interface on the front of the controller.
No
Description
LAN port
USB port
D-SUB connectors
9-pin (COM1, COM2): serial communication (RS485, 422, 232)
25-pin (SDIO): common digital I/O
Terminal blocks
TB1: common analog I/O
TB2: dedicated safety signal input
TB3: system signal I/O