Mpm, apm, ppm, & lti series modbus, Register tables serial communication – Dwyer PPM User Manual
Page 4

MPM, APM, PPM, & LTI Series Modbus
®
Register Tables
Serial Communication
Page 4
Register
1
Name Access
Limits or
Range
2
Units
Data
Type
3
Function
Code(s)
Comments
Number Address
(hex)
40001 – 40002
0 – 1
(0000 – 0001)
PV/Rate Display
value
Read Only -99999 to 999999
User defined
Floating point
03, 04
Represents the PV/Rate display value including the decimal
point. Under Range = -99999, Over Range = 999999, and
Open = -99999
40003
2
(0002)
Alarm and Relay
status
Read Only
1 = In Alarm
1 = relay
energized
None
Word; Bits
03, 04
Read alarm status and energized/non-energized status of
relays. Alm = Alarm. Rly = Relay.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Alm
8
Alm
7
Alm
6
Alm
5
Alm
4
Alm
3
Alm
2
Alm
1
Rly
8
Rly
7
Rly
6
Rly
5
Rly
4
Rly
3
Rly
2
Rly
1
40004
3
(0003)
Digital Inputs and
Outputs status
Read Only
1 = Input selected
1 = Output active
None
Word; Bits
03, 04
Read the state of the digital inputs and outputs.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DI
8
DI
7
DI
6
DI
5
DI
4
DI
3
DI
2
DI
1
DO
8
DO
7
DO
6
DO
5
DO
4
DO
3
DO
2
DO
1
40005 – 40006
4 – 5
(0004 – 0005)
Maximum Display
value
Read Only -99999 to 999999
User defined
Floating point
03, 04
Represents the Maximum display value, including the decimal
point, since last power up or Max Value reset.
40007 – 40008
6 – 7
(0006 – 0007)
Minimum Display
value
Read Only -99999 to 999999
User defined
Floating point
03, 04
Represents the Minimum display value, including the decimal
point, since last power up or Min Value reset.
40009 – 40010
8-9
(0008 – 0009)
Total value
Read Only
0 to 999999999
User defined
Floating point
03, 04
Represents the Total value, including the decimal point, since
last Total reset.
40011 – 40012
10 – 11
(000A – 000B)
Grand Total value Read Only
0 to 999999999
User defined
Floating point
03, 04
Represents the Grand Total value, including the decimal point,
since last Grand Total reset.
40013 – 40014
12 – 13
(000C – 000D)
Total overflow
value
Read Only
0 to 999
User defined
Floating point
03, 04
Represents the Total overflow value, since last Total reset.
40015 – 40016
14 – 15
(000E – 000F)
Total non-
overflow value
Read Only
0 to 999999
User defined
Floating point
03, 04
Represents the Total non-overflow value, since last Total reset.
40017 – 40018
16 – 17
(0010 – 0011)
Grand Total
overflow value
Read Only
0 to 999
User defined
Floating point
03, 04
Represents the Grand Total overflow value, since last Grand
Total reset.
40019 – 40020
18 – 19
(0012 – 0013)
Grand Total non-
overflow value
Read Only
0 to 999999
User defined
Floating point
03, 04
Represents the Grand Total non-overflow value, since last
Grand Total reset.
40021
20
(0014)
PV/Rate Display
value
Read Only -99999 to 999999
User defined
Long Hi
03, 04
Represents the PV/Rate display value excluding the decimal
point. Decimal point setting in 40102.
40022
21
(0015)
PV/Rate Display
value
Read Only
User defined
Long Lo
03, 04
Must be read with 40021.