User`s manual

CHAPTER 1: COMMUNICATIONS

This chapter of the Siemens (S5 Communications) Reference concerns: the

cabling needed to use the SOI-120 or SOI-260 Communications Port

and the SOI-260’s optional Printer Port, using the SOI-260’s optional

Printer Port with ASCII input devices (including bar code scanners),

and special PLC and SOI switch settings.

Using the Communications Port

The communications port may be used for up/downloading application

programs or communicating with the PLC.

The following illustrations identify cable pin-outs for SOI-to-computer

communications, Spectrum Controls’ SCC-3 up/download cable

(including adapters), and SOI-to-PLC communications.

SOI Upload/Download Cable Requirements

The illustration below shows the up/download cable pin-out configura-

tion for the communications port (RS-232 selected). The diagram

indicates the required connections when building your own cable.