Honeywell SMV 3000 User Manual page 145

11.4 Diagnostic Messages,
Diagnostic Messages,
Table 33
continued
SMV Status SCT Status Message SFC Display Message TDC Status Message
- -
- -
- -
- -
1/99
Continued
Communication Status Message Table, continued
STATUS TAG ID.
NACK RESPONSE
TAG NO.
FAILED COMM CHK
TAG NO.
HI RES/LO VOLT
TAG NO.
NO XMTR RESPONSE
SMV 3000 Transmitter User's Manual
Possible Cause
- Transmitter sent a negative
response because it could not
process one or more commands.
- SFC failed a communications
diagnostic check. Could be an
SFC electronic problem or a
faulty or dead communication
loop.
- Either there is too much
resistance in loop (open circuit),
voltage is too low, or both.
- No response from transmitter.
Could be transmitter or loop
failure.
What to Do
Check configuration and try again.
• Check polarity and try again.
• Press [stat] key and do any
corrective action required and try
again.
• Check communication loop.
• Replace SFC.
• Check polarity, wiring, and
power supply. There must be 11
volts minimum at transmitter to
permit operation.
• Check for defective or
misapplied capacitive or
inductive devices (filters).
• Try communicating again.
• Check that transmitter's loop
integrity has been maintained,
that SCT or SFC is connected
properly, and that loop
resistance is at least 250 .
SCT – Select Tag ID from the View
pull down menu.
SFC – Press [ ] key and do any
ID
corrective action required and try
again.
133