Installation manual

Publication 1747-RM001G-EN-P - November 2008
12-50 SLC Communication Instructions
A scanner code of 0x207 results in an error code of 1. All other scanner codes
listed result in an Error Code of 2. Table 12.20 list all valid CEM instruction
Error Codes.
For error code 4, the error description displays the CIP response error code
and description as documented in the CIP Common Specification, Appendix
B.
Any time the Error Code is non-zero, the CEM error (ER) bit is set.
Send Data Tab
The Send Data Tab provides a convenient way of viewing and entering in data
to be sent along with the explicit message command. The data is shown in byte
format with a selectable radix of either Decimal or Hex/BCD. The display
only shows the number of words that are defined in the Size in Words (Send
Data) field, starting with the low byte of the first word as defined in the Data
Table Address (Send Data) field. If the Size in Words is zero, then no data is
displayed. You can also change the data being viewed, but only when offline or
during an online edit. Click on the data and enter in a byte value based on the
current radix (0 to 255 for Decimal and 0 to FF for Hex/BCD). The changed
data gets copied to the Send Data data table file when the rung is accepted. To
update the Send Data display with the current values stored in the Send Data
data table file, click on the Refresh button.
Receive Data Tab
The Receive Data Tab provides a convenient way of viewing the data that is
returned by the target device in response to the explicit message command
sent. The data is shown in byte format with a selectable radix of either Decimal
or Hex/BCD. The display only shows the number of words that are defined in
the Size in Words (Receive Data) field, starting with the low byte of the first
word as defined in the Data Table Address (Receive Data) field. If the Size in
Words is zero, then no data is displayed. To update the Receive Data display
with the current values stored in the Receive Data data table file, click on the
Refresh button.
Table 12.20 Valid CEM Instruction Error Codes
Error Code Description of Error Condition
0 No error.
1 Timeout error. ControlNet explicit message timed out by scanner.
2 Scanner error. See Scanner Status.
3 Configuration error. Send file length > 248 or invalid IOI size.
5 Processor error. Invalid response.
6 Processor error. Unsolicited response received.
7 Configuration error. Size of response data > receive data size.