INFICON BPG402-SP ATM to Ultra-High Vacuum Gauge (Profibus) - Manual (Page 10)

10
tira47e1 (2005-08) BPG402SPv1.cp
In the event of a transmission error (AK response signature = 7), the slave trans-
mits an error code in byte positions 7 and 8 (data type: INT16).
Error code Meaning
0 Undefined slot
1 Parameter not changeable
2 Lower or upper value range limit overflow
3 Index error
5 Data type error
17 Instruction not allowed in this state
18 Other errors
201 Already in requested state
202 Object state conflict
The following diagram shows an example of a data request from a master to a
BPG402-SP via parameter channel.
AK(RS) = 0
BPG402-SP DP-Master
AK(RS) = 0
AK (IS) = 1
AK(RS) = 1
AK (IS) = 1
Parameter
Request
(Client)
AK(RS) = 0
AK (IS) = 1
AK(RS) = 0
AK (IS) = 0
AK(RS) = 0
Store
Data
AK (IS) = 0
AK(RS) = 0
Parameter
Request
(Server)
AK(IS) = 0
AK(IS) = 0
Fetch
Data
2.2.1.3 Error Code
(Error Message)