GFK-0356Q Chapter 9 State Logic Products 9-11
9
CPU Serial Port Connector on Power Supply
The 15-pin D-connector provides the connection to an RS-485 compatible serial port. The
connection is made from the serial port on the power supply to the serial port on the programming
computer or other serial device through the RS-422/RS-485 to RS-232 Converter (IC690ACC900)
or RS-422 to RS-232 Miniconverter (IC690ACC901).
The serial port has three possible uses:
■ as a programming port for the State Logic software to download programs and to send
instructions to the PLC;
■ as an ASCII port providing a connection from the CPU to any ASCII device;
■ as a CCM port providing an interface connection for MMI and other host computer systems.
RS-485
COMPATIBLE
SERIAL PORT
Figure 9-8. Serial Port Connector
Notes
The serial port connector is functional only in a power supply that is installed
in a baseplate that also contains the CPU; this includes the Model CSE 311
and CSE 313 5-slot baseplates with built-in CPU, CSE 323 10-slot baseplate
with built-in CPU, and the Model CSE 331 and CSE 340 single slot CPUs.
The serial port is not functional when a power supply is installed in a Series
90-30 expansion or remote baseplate.
Additionally, any device connected to the serial port that uses +5 VDC power
from the Series 90-30 power supply
must be included
in the calculation for
maximum power consumption (see
Sample Calculations for Power Supply
Loads
in Chapter 3 of this manual).
Configuring the State Logic CPUs
All of the State Logic CPUs and attached I/O system are configured with the State Logic software.
There are no DIP switches or jumpers used to configure the system. The CPU verifies the actual
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