Yaskawa 545 PLC User Manual

Page 14

OPERATION

PLC Gateway Display Messages

4/12/94

PUPn

n=3 – During this stage, the PLC Gateway checks

(cont’d)

each base on its list and makes sure the base
has received configuration information from the
Texas Instruments PLC. If not, an "ECdd"
message is displayed, where "dd" is the base
number of the base that has not responded.
If all drops on the list are configured, then the
gateway issues another power-up message
across the network and enters the RUN stage.

RUN

When this message is displayed, the PLC Gateway
has completed its power-up (PUP) sequence and is
ready to transfer data to and from the Texas
Instruments PLC. If, while in this stage, an alloca-
tion message is received for a drop that has not been
configured, the PLC Gateway jumps back to the PUP
sequence. A "ECOM" error also causes the PLC
Interface to leave the RUN stage and return to the
PUP stage when communication is re-established
between the 5136-TI card and the Texas
Instruments RBS Processor.

THNP

This message is displayed during PLC Interface

Check that the 5136-TI card

has

initialization if it is determined that the 5136-TI

been properly installed. The 5136-TI

card is not present.

card could be defective; swap it with
another that you know works
properly.

TIFL

This message is displayed during PLC Gateway

initialization if the 5136-TI card software never com-

TNR

pletes its own initialization and remains not ready.

TQFL

Transmission Queue Full. This generally occurs

• Reduce number of data points.

when the amount of data requested exceeds the

• Change update rates in the PAC

gateway bandwidth.

program.

• If multiple drives are requesting

the same data, change the PAC
programs so that one drive
requests the data and then passes
it to the other drives.

• Add additional gateways to share

the load.

Table 7. PLC Gateway Display Messages (Continued)

MESSAGE

DESCRIPTION

TROUBLESHOOTING

RD 3056-10