Replacing Workmaster Computers; Ic690Acc900 Rs-422/Rs-485 To Rs-232 Converter - GE 90-30 PLC Series Installation And Hardware Manual

Replacing Workmaster Computers

The Workmaster and Workmaster II computers are no longer available. However, the Work
Station Interface boards are still sold, largely to support customers still using the Workmaster and
related products. GE currently sells industrially hardened programming computer/software
packages that are updated replacements for the Workmaster computers. For details, please contact
the GE Hotline at 1-800-GE (1-800-433-2682), or for international customers,
direct dial 804-978-6036.

IC690ACC900 RS-422/RS-485 to RS-232 Converter

This item is no longer available. The information provided in this manual is for the
convenience of those still using this product.
This Converter lets you connect a standard RS-232 serial port, such as found on a PC-compatible
computer, to the RS-422/RS-485 ports in a Series 90-30 PLC.
If using a Workmaster II computer, this converter eliminates the need to have a Work Station
Interface board.
This converter is a small, self-contained device that requires only a cable connection to the Series
90-30 RS-422/RS-485 port on one end and a cable connection to the RS-232 port on the opposite
end.
Figure 11-3. Example of IC690ACC900 Converter Connection
The converter operates from a +5 VDC source, which is provided from the PLC backplane +5
VDC bus through the cable connection. The pin assignments for the connections on the cable
required for the RS-232 connection are compatible with available PCM compatible serial cables
(IC690CBL701, PCM to Workmaster; IC690CBL705, PCM to Workmaster II; and IC690CBL702,
PCM to PC-AT). The RS-422/RS-485 connection at the Series 90-30 serial port on the power
supply can be made with an available cable (same cable that is used with the Hand-Held
Programmer), IC693CBL303.
The three PCM compatible cables (IC690CBL701/702/705) are 10 feet (3 meters) in length, and
the HHP compatible cable (IC693CBL303) is 6 feet (2 meters) in length. For those user's who
may want to build their own cables, pin assignments and recommended cable types for both cables
GFK-0356Q Chapter 11 Programmer Hardware Products
GE offers the IC690ACC901 Miniconverter kit, documented in the
next section of this chapter, as a replacement for the IC690ACC900
Converter.
SERIES 90-30
RS-485
CONVERTER
Programmer Hardware Products
Note
PROGRAMMER
RS-232
11
11-3