GE Series 90-70 manual Serial Port Pin Assignments, Link Module Used as a Slave

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I/O Link Module Used as a Slave

If the module will be used as a slave, connect the cable from the previous device (either the master or another slave) to the upper port. If the module is followed by another slave on the link, connect the cable from that device to the lower port.

JD1A

JD1B

JD1A

a45018

JD1B

Order of the Devices on the Link

The devices on an I/O Link must be installed in the order expected by the master. If the Series 90±70 PLC is the master, be sure to connect the devices on a link in the order that agrees with the information provided to the application Program Block.

Serial Port Pin Assignments

Pin #	Signal	Pin #	Signal
1	SIN	11	0 volts
2	*SIN	12	0 volts
3	SOUT	13	0 volts
4	*SOUT	14	0 volts
5		15	0 volts
6		16	0 volts
7		17
8		18	+5 volts
9	+5 volts	19
10		20	+5 volts

The +5±volt output from each connector powers the fiber optic link modules for long distance applications. The +5±volt output is not used otherwise.

18 Series 90t-70 I/O Link Interface Module User's Manual ± February 1993 GFK-0644A