Register Sections
Starting Address
Register Size
Slave 20 Configuration (Floating Points)
9976
32-Bit
Important All registers cited in this document refer to the address of the register that appears in the actual
Modbus message. For example, register 8000 has an address of 0x1F40 hexadecimal in the
message.
Events (16-bit)
Register
(Decimal)
Register
(Hex)
Description
Data
Type
Units Access
32
0020
Enron: Event/Alarm Register
ER
—
RO
Command Registers
Register
(Decimal)
Register
(Hex)
Description
Data
Type
Units
Access
71
0047
Command Register: Argument 1
INT32
—
RW
72
0048
Command Register: Argument 2
INT32
—
RW
73
0049
Command Register: Argument 3
INT32
—
RW
74
004A
Command Register: Argument 4
INT32
—
RW
75
004B
Command Register: Command Register
INT32
—
RW
76
004C
Command Register: Response Code
INT32
—
RW
Important The argument code must be written before the register code. If “—” is shown, write 0.
Important Administration rights are required to write command registers.
Code
Description
Arg 1
Arg 2
Arg 3
Arg 4
Config
Lock
If Config Lock = Yes, an active configuration lock in the Scanner prevents changes to the register.
100100 Clears the triggered
archive pointers and
indices
0 = All
1 = Trigger Archive 1
2 = Trigger Archive 2
—
—
—
No
100102 Clears the event
archive pointers and
indices
0 = All
1 = Event Archive 1
100104 Sets the slave device
archive pointers on
the Scanner 3100
0 = All
1 = Slave Archive 1
2 = Slave Archive 2
(continues through
Slave Archive 20)
0 = Force Sync (stop
downloads)
1 = Force Reload of
all records
—
—
Yes
100333 Resets the device
(software reset)
—
—
—
—
No
11
Scanner 3100 Modbus Protocol
Section 1