TROUBLESHOOTING
INTERFACE CHECKOUT PROCEDURE
5 - 4
I-E96-620A
®
9. Type:
AU000
This is the full interface restart command. The interface should
reply with a 000 and the terminal reads:
000000000002
The LIM is out of bypass and the LIM LEDs may begin counting
messsages from other nodes on the Plant Loop.
10. Read a module status to verify that there is communication
between the interface and a module.
11. Find a working module and type:
BC000pppppmmmmm
where ppppp is the five digit PCU number and mmmmm is the
five digit module number.
These numbers are decimal numbers. For example, to read
PCU 11, module 22 type:
BC0000001100022
12. The module replies and the terminal displays an 18 digit
reply code. For example:
000101000000000000
where the first three digits 000 indicate no error followed by
five sets of three digits that represent the decimal value of the
module's status bytes. In this example, the second set of digits
101 translates into hexidecimal 65 which indicates an execut-
ing COM module. Refer to the Enhanced CIU Programmer's
Manual for more information about module status bytes.
13. If the interface can communicate with a module and the
module replies, the interface checks good.
14. Remove the SIM from the MMU and set it to binary (SW4,
position 1 = 0, closed) and enable the command and reply
checksum option if desired.
15. Remove the terminal and connect the computer to the com-
puter port (port 0) of the NTCU01.
Enter
Enter
Enter