Ampcontrol Gasguard 2 - Page 13

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 13 of 22
APPROVED FOR EXTERNAL DISTRIBUTION
– PROPERTY OF AMPCONTROL PTY LTD
– NOT TO
BE REPRODUCED IN PART
Block 2
Linked to the Power Supply Register.
1,3
Setpoint 3 (Gas)
4000 - 20000
W
RTGMS used for Trip
Block 2
Description
Value
R/W
Application Notes
2,0
iMAC Address - Power
supply register
0 - 255
W
iMAC address
2,1
Power Supply Setpoint A
- (AIM Mode)
OR
SPARE for GG2 Mode
AIM Mode : 1000 - 2400
(10.00 to 24.00) Warn
W
RTGMS used for Warn
GG2 Mode : n/a
2,2
Power Supply Setpoint B
- (AIM Mode) MSB
OR
Power Supply Setpoint A
- Warn / Alarm (GG2
Mode)
GG2 Mode
: 100 - 240
(10.0 -
24.0 V)
Warn
AIM Mode
800 - 2400
(8.00 to
24.00)
Trip
W
AIM Mode RTGMS used for
Trip
GG2 Mode used for Warn
Power Supply Setpoint B
- Trip (AIM Mode) LSB
OR
Power Supply Setpoint B
- Trip (GG2 Mode)
GG2 Mode
: 80 - 240
(10.0 -
24.0 V)
Trip
AIM Mode RTGMS used for
Trip
GG2 Mode used for Trip
2,3
Hysteresis config
Bit 15 - 12
W
Hysteresis setting 0 - 7.5% in
0.5% steps
(1 = 0.5%, 2 = 1% etc.)
Healthy config
Bit 11 - 9
000': always healthy,
'001': healthy < SP1,
'010': SP1 ≤ healthy < SP2,
'011': SP2 ≤ healthy < SP3,
'100': healthy ≥ SP3
Warmup and fault output
behaviour
Bit 8
‘1’ for high warmup and
soft-fault high,
‘0’ for low warmup and
soft-fault low on 4-20mA
bus
Nominal Values
Low Fault - 2.8mA 2800
Low warmup - 3mA 3000
Under range - 3.2mA 3200
NDIR (only) zero shift negative
- 3.7mA 3700
Normal range - ~4-20mA
4000-20000
Over range - 20.8mA 20800
High warmup - 21mA 21000
High fault - 21.2mA 21200
iMAC address for 32-bit
sys clock
Bit 7 - 0
1 - 254
(excluding the last
address of each data
block, which would
The iMAC controller will
publish a 32 bit clock on the
data bus at this address (and
+1), so that the GG2 can use it