<4. Explanation of Basic Item>
4-2
IM 12A01A02-72E
3rd Edition : Oct. 01, 2015-00
The AI1/2 measurement items assigned to each slot are determined according to Channel (AI) as
well as PRIMARY, SECONDARY, TERTIARY, and QUATERNARY Type (Transducer Block). For
details, see the description of each item.
The GSD file of the FLXA21 specifies 3 modules:
;Empty module
Module = “Empty Module” 0x00
1
EndModule
;Modules for Analog Input
Module = “Analog Input (AI)short” 0x94
2
EndModule
;Modules for Analog Input
Module = “Analog Input (AI)long” 0x42,0x84,0x81,0x81
3
EndModule
;--- Description of the module assignment: ---
;
SlotDefinition
Slot(1) = “AI1” 3
1,2,3
Slot(2) = “AI2” 3
1,2,3
Slot(3) = “AI3” 3
1,2,3
Examples:
- Configuring the output of the AI block 1 (pH) and the output of AI block 2 (temperature):
“Analog Input (short) “ and “Analog Input (short) “ and “Empty Module” or “0x94, 0x94, 0x00”
- Configuring the output of AI block 1 (pH) only:
“Analog Input (long) “ and “Empty module” and “Empty module” or “0x42, 0x84, 0x81, 0x81,
0x00, 0x00”
NOTE
Most Master Class 1 devices have an advanced Human Machine Interface and will guide you
through these configurations.
4.3
Reading acyclic parameters
Communications occur on a peer-to-peer basis. A cyclic communication services for
parameterization, operation, monitoring, alarm/error handling and diagnostics of intelligent
devices may be handled in parallel to cyclic transfer.
