Ampcontrol Gasguard 2 - Gasguard Live Registers

Ampcontrol Pty Ltd – ABN 28 000 915 542
GG2 COMMUNICATIONS USER MANUAL
GG2B032 Version 1 – JULY/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 12 of 22
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– NOT TO
BE REPRODUCED IN PART
4.3 Gasguard Live Registers
The following features are available via Ampcontrol’s Digital Solution.
Block 0
Linked to the Flags Register.
Block 1
Linked to the Analogue Input Register.
Block 0
Description
Value
R/W
Application Notes
0,0
iMAC Address - Flags
register
0 - 255
W
iMAC Address
0,1
Exception Trigger
100 - 20,000
W
Step change between the 1s
samples to trigger exception.
Forces the iMAC Controller to
temporarily prioritise this
module, as opposed to a round
robin scan which could have
as much as a 30s delay at 300
baud
0,2
Detector gas reading
permyriad - unaffected by
telemetry test
-32768 to 32768
Permyriad
W
Not overridden by Telemetry
testing (is still however subject
to fault and warmup values)
0,3
Future use
Bit 15 - 7 (255 to 128)
W
AIM Compatibility mode
Bit 8 : Yes = 1 (Power
supply register is 16bit)
Bypass address
Bit 7 - 0 : 1 to 255
(where 0 is disabled)
iMAC data bus address to
monitor for displaying bypass
message
Relevant bits on the data bus:
Data bit 8 = "Remote bypass"
(via PLC or similar)
Data bit 0 = "Local bypass"
(aligns with a DI4 input
module)
Block 1
Description
Value
R/W
Application Notes
1,0
iMAC Address -
Analogue register
0 - 255
W
iMAC address
1,1
Setpoint 1 (Gas)
4000 - 20000
W
RTGMS used for calibration,
fault i.e. loss of analogue loop
or negative drift alarm
1,2
Setpoint 2 (Gas)
4000 - 20000
W
RTGMS used for Warn