INFICON PSG55x ATM to Medium Vacuum Gauge (Profibus) - Manual (Page 19)

tira56e1 (2010-02) PxG55x.cp
19
The structure of the process data part of the input and output data area depends
on the chosen message telegram. Applicable configurations are described below.
When selecting a message telegram, ascertain what output format of the measured
value (integer/float) is required and whether a parameter channel is needed or not.
The gauge can also be operated in such a way that the master does not transmit
any output data to the slave.
Standard
telegram
Master
⇔
Slave
Bytes Meaning
2 M ⇒ S 0…7 Parameter Channel
1 S ⇒ M
0
1…2
Exception Status
Process Value UINT16
2 S ⇒ M
0
1…4
Exception Status
Process Value float
3 S ⇒ M
0
1
2
3…4
Exception Status
OneOfN Status Extension
OneOfN PV Selector
Process Value UINT16
4 S ⇒ M
0
1
2
3…6
Exception Status
OneOfN Status Extension
OneOfN PV Selector
Process Value float
7 S ⇒ M
0…7
8
9…10
Parameter Channel
Exception Status
Process Value UINT16
8 S ⇒ M
0…7
8
9…12
Parameter Channel
Exception Status
Process Value float
9 S ⇒ M
0…7
8
9
10
11…12
Parameter Channel
Exception Status
OneOfN Status Extension
OneOfN PV Selector
Process Value UINT16
10 S ⇒ M
0…7
8
9
10
11…14
Parameter Channel
Exception Status
OneOfN Status Extension
OneOfN PV Selector
Process Value float
201 S ⇒ M
0
1…2
3
4…5
Exception Status
Process Value UINT16
OneOfN Status Extension
Trip Relay 1-2
202 S ⇒ M
0
1…4
5
6…7
Exception Status
Process Value float
OneOfN Status Extension
Trip Relay 1-2
203 S ⇒ M
0…7
8
9…10
11
12…13
Parameter Channel
Exception Status
Process Value UINT16
OneOfN Status Extension
Trip Relay 1-2
(continued)
4.4 Process Data
4.4.1 Standard Telegrams