Siemens Milltronics BW500/L - Generally; Specifically

BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD
193
Troubleshooting
13
13.1
Generally
1. First check to see that:
– There is power at the unit
– The LCD is showing something
– The device can be programmed using the fixed keypad.
2. Then, check the wiring pin outs and verify that the connection is correct.
3. Next, go over the setup parameter P770 to P779 and verify that these values match the
settings in the computer that you are using to communicate with it.
4. Finally, if you should check that the port you are using on the computer. Sometimes trying a
different Modbus driver will solve the problem. An easy stand-alone driver called ModScan32,
is available from Win-Tech at www.win-tech.com (www.win-tech.com
). We have found that
this driver has been very useful to test communications.
13.2
Specifically
Q1:
I tried to set a Siemens Milltronics device parameter, but the parameter remains unchanged.
A1
:
a. Try setting the parameter from the keypad. If it can’t be set using the keypad, check the lock
parameter (P000) and
b. Check to ensure that the SW1 (certification switch) is not in the certification position.
Error Code
! a)
Code Name
Message/Action
201 Error - Load Cell A & B
Reading between A & B
> 15000, or no signal.
Check wiring.
202 Error - Load Cell C & D Reading between C &
D > 15000, or no sig-
nal. Check wiring.
203 ✓ Err: 203 Memory failure test.
Consult Siemens.
210 ✓ Remote Totalizer 1
exceeded
Increase resolution.
211 ✓ Remote Totalizer 2
exceeded
Increase resolution.