100/180MM DISTRIBUTED GRAPHIC RECORDER: USER GUIDE
Page 131
HA029324
Issue 11 Oct 14
4.3.12 (Cont.) TOTALISER MODBUS ADDRESSING
RUN-TIME DATA
This table shows addresses for totaliser 1. Generally: totaliser N address = totaliser 1 a 3(N-1)
(decimal)
TOTALISER 1
Note: If an alarm’s Setpoint Source (
section 4.3.3
) is set to anything other than ‘Constant’ the value
returned will be the previously confi gured constant value.
Value
Current process value (PV)
Scaled
Read/Write A3E6 (41958)
1
Status
Channel status
Enum
Read only
A3E7 (41959)
1
0 = Good PV
5 = Ranging error
1 = Channel off
6 = Overfl ow
2 = Over range
7 = Bad PV
3 = Under range
8 = No data
4 = Hardware error
Alarms
Alarm information
Uint16
-
A3E8 (41960)
1
Bit 0: 0 = Alarm 1 inactive; 1 = Alarm 1 active
Read only
Bit 1: 0 = No alarm 1 Ack. required; 1 = Ack. required
Read only
Bit 2: 1 = Acknowledge alarm 1
Read/Write
Bit 3: Spare
Bit 4: 0 = Alarm 2 inactive; 1 = Alarm 2 active
Read only
Bit 5: 0 = No Alarm 2 Ack. required; 1 = Ack. required
Read only
Bit 6: 1 = Acknowledge alarm 2
Read/Write
Bit 7: Spare
Bit 8: 0 = Alarm 3 inactive; 1 = Alarm 3 active
Read only
Bit 9: 0 = No alarm 3 Ack. required; 1 = Ack. required
Read only
Bit 10: 1 = Acknowledge alarm 3
Read/Write
Bit 11: Spare
Bit 12: 0 = Alarm 4 inactive; 1 = Alarm 4 active
Read only
Bit 13: 0 = No Alarm 4 Ack. require d; 1 = Ack. required
Read only
Bit 14: 1 = Acknowledge alarm 4
Read/Write
Bit 15: Spare
IEEE 32-BIT CONFIGURATION DATA
The following table gives addresses for the specifi ed 32-bit fl oating-point values, for Totaliser 1. Gener-
ally, Parameter address for totaliser N = Parameter address for totaliser 1 + 36(N-1) (decimal).
TOTALISER 1
Parameter name
Description
Type
Access
Start Addr
Hex (Dec)
Register
Length
Parameter name
Description
Type
Access
Start Addr
Hex (Dec)
Register
Length
Span high
Upper span value (Display full scale)
Float
Read only
ED83 (60803)
2
Span low
Lower span value (display ‘zero’)
Float
Read only
ED85 (60805)
2
Zone high
Zone upper value (% of ‘chart’ width)
Float
Read only
ED87 (60807)
2
Zone low
Zone lower value (% of ‘chart’ width)
Float
Read only
ED89 (60809)
2
Alarm 1 setpoint
Trigger setpoint for alarm 1 (see note)
Float
Read/Write ED8B (60811)
2
Alarm 2 setpoint
Trigger setpoint for alarm 2 (see note)
Float
Read/Write ED8D (60813)
2
Alarm 3 setpoint
Trigger setpoint for alarm 3 (see note)
Float
Read/Write ED8F (60815)
2
Alarm 4 setpoint
Trigger setpoint for alarm 4 (see note)
Float
Read/Wr ite ED91 (60817)
2
Spare
ED93
(60819)
20
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