Instruction manual

ControlWave Micro Instruction Manual (CI-ControlWave Micro)
Revised Jun-2013 Service & Troubleshooting 5-21
Option Tests
Twisted Pair tests require the use of a loop-back
plug.
Low Level AI Checks Thermocouples and CJC on LLAI
modules and check RTDs on RTD modules.
Port Loop-back
Test
WINDIAG allows you to select the communication port (1 through 4)
to test. Depending on the type of network (RS-232 or RS-485) and the
port in question, a special loop-back plug is required:
 Ports 1, 2, 4, and 8 (RS-232) use a 9-pin female D-type loop-back
plug (shown in Figure 5-13).
Figure 5-13. RS-232 Loop-back Plug
 Ports 3, 5, and 9 (RS-485) use a 9-pin female D-type loop-back plug
(shown in Figure 5-14).
Figure 5-14. RS-485 Loop-back Plug
These tests verify the correct operation of the communication interface
on ports COM1 through COM5 and COM8 and COM9.
Note: You cannot test a communications port while you are using it.
You can only test currently unused ports. After you complete
testing on all other communication ports (and verify their correct
functioning), you must reconnect (using a now validated port)
and test the remaining untested port.