INFICON BPG402-SP ATM to Ultra-High Vacuum Gauge (Profibus) - Manual (Page 11)

tira47e1 (2005-08) BPG402SPv1.cp
11
The message telegrams listed below are implemented in the gauge. They can be
selected according to requirements. 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
Byte Meaning
1 M
⇒ S
0 Transition Command
1 Transition Command Value for Hot Ion Gauges
2 M
⇒ S 0 … 7 Parameter Channel
8 Transition Command
9 Transition Command Value for Hot Ion Gauges
3 M
⇒ S 0 … 7 Parameter Channel
4 S
⇒ M 0 Exception status
1 One Of N status extension
2 One Of N PV selector
3 … 4 Process value UINT16
5 S
⇒ M 0 Exception status
1 One Of N status extension
2 One Of N PV selector
3 … 6 Process value float
6 S
⇒ M 0 … 7 Parameter channel
8 Exception status
9 One Of N status extension
10 One Of N PV selector
11 … 12 Process value UINT16
7 S
⇒ M 0 … 7 Parameter channel
8 Exception status
9 One Of N status extension
10 One Of N PV selector
11 … 14 Process value float
Depending on the standard telegrams used, the respective configuration data have
to be transmitted to the gauge during the configuration phase (
→ table on  5).
2.3 Cyclic Message
Telegrams
Configuration data