SATEC SLC500 - Manual (Page 14)

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The BASIC module doesn't interface to the instruments
The symptom that indicates a problem is that a non-zero error code is received by the CPU in
word 64 in the M1 file. It might be reported for all or some of the Powermeters connected to
the BASIC module . Note that for the disconnected instruments, that would be a normal
response.
If you encounter that the problem exists for all the instruments, determine whether one of the
following is the cause:
1. Make sure that port PRT2 is configured properly and the settings for jumpers JW2 and
JW4 are correct. For information on the jumper settings for port PRT2, refer to Section
2.2.
2. Check whether the Powermeters turned on, you have the correct cable, and it is properly
connected to the BASIC module port PRT2 and to the Powermeters. For cable drawings,
refer to Appendix C.
3. Make sure all communications settings (baud rate, data bits, parity, protocol, instrument
address) are set correctly in the instruments, and the baud rate setting conforms to the
driver version. For information about communications settings for the Powermeters, refer
to Section 2.4.
When the problem exists for some of the Powermeters, the cause is often related to improper
cable connection or incompatible communications settings made in the instruments.