IQ 100 Series (130/140/150) Meter
Appendix B: Modbus Map
Description
1
Format
Range
6
Units or
Resolution
Comments
#
Reg
Modbus Address
Hex
Decimal
Block Size:
2
read/conditional write
55EF - 55EF
22000 - 22000
Initiate Programmable Settings Update
UINT16
password
5
meter enters PS update mode
1
55F0 - 55F0
22001 - 22001
Terminate Programmable Settings Update
3
UINT16
any value
meter leaves PS update mode via reset
1
55F1 - 55F1
22002 - 22002
Calculate Programmable Settings Checksum
3
UINT16
meter calculates checksum on RAM copy
of PS block
1
55F2 - 55F2
22003 - 22003
Programmable Settings Checksum
3
UINT16
read/write checksum register; PS block
saved in EEPROM on write
8
1
55F3 - 55F3
22004 - 22004
Write New Password
3
UINT16
0000 to 9999
write-only register; always reads zero
1
59D7 - 59D7
23000 - 23000
Initiate Meter Firmware Reprogramming
UINT16
password
5
1
Block Size:
6
read/write
61A7 - 61A7
25000 - 25000
Force Meter Restart
UINT16
password
5
causes a watchdog reset, always reads 0
1
Block Size:
1
read/write
658F - 659A
26000 - 26011
Perform a Secure Operation
UINT16
encrypted command to read password or
change meter type
12
Block Size:
12
write only in PS update mode
752F - 752F
30000 - 30000
CT multiplier & denominator
UINT16
bit-mapped
dddddddd mmmmmmmm
high byte is denominator (1 or 5, read-only),
low byte is multiplier (1, 10, or 100)
1
7530 - 7530
30001 - 30001
CT numerator
UINT16
1 to 9999
none
1
7531 - 7531
30002 - 30002
PT numerator
UINT16
1 to 9999
none
1
7532 - 7532
30003 - 30003
PT denominator
UINT16
1 to 9999
none
1
7533 - 7533
30004 - 30004
PT multiplier & hookup
UINT16
bit-mapped
mmmmmmmm MMMMhhhh
MMMMmmmmmmmm is PT multiplier (1,
10, 100, 1000),
hhhh is hookup enumeration (0 = 3 element
wye[9S], 1 = delta 2 CTs[5S], 3 = 2.5
element wye[6S])
1
Basic Setups Block
Other Commands Block
Meter Programming Block
Programmable Settings Section (see Note 15)
Encryption Block
User and Installation Manual
IM02601003E -
December
2009
MM-5