Dr 7 - Rs485-Character Frame - Siemens SIWAREX FTA Device Manual

Weighing electronics for automatic scale
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5.6.18 DR 7 - RS485-character frame

Parity:
0: even
1: odd
Number of data bits
0: 7 data bits
1: 8 data bits
Number of stop bits:
0: 1 Stop bit
1: 2 Stop bits
5.6.19 DR 7 - Definition of the Digital Outputs 1, 2, 3, 4, 5, 6, 7, 8
The definition of the digital outputs can be defined with this parameter. Assigning
a bit from the pool of status bits for the scale causes the output to be active (active
can be signal level 0 or 1 - see below) if the bit is set.
When assigning a number between 0 and 63, the digital output is assigned to
a status bit of the scale and when assigning a number > 63, the output remains
inactive.
0... 31 Bit-No. NAWI status flag
32 + 0... 31 Bit-No. AWI status flag
253
254
255
Value range 64 to 252 Output always inactive
5.6.20 DR 7 - Level definitions for digital outputs 1 to 8
After assigning the definitions for digital outputs to a status bit, the signal that the
output should have when it is active can be determined.
E.g. Digital output 1 (DO1) is determined with bit 0:
If bit 0 is 0 then DO1 is high active and if bit 0 is 1 then DO1 is low active,
If bit 1 is 0 then DO2 is high active and if bit 1 is 1 then DO2 is low active,
etc.
SIWAREX FTA
Start cycl. value transfer from sensor Mettler Toledo type WM or WMH
Stop cycl. value transfer from sensor Mettler Toledo type WM or WMH
Output always inactive
Weighing Functions
5-83

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