SIMPRO-100
Modbus
™
RTU Communications Protocol
C
PRIM-2400C
165
C.11
10h Preset Multiple
Registers Command
This function code works much like code 06h,
except that it allows you to write multiple registers
at once, up to 100 per operation. Normally, this
function code will only be used to write source
addresses in the User map region. If you are
accustomed to 4X references with the function
code, for 6-digit addressing, simply add 400001
to the standard database addresses.
Table C.13
10h Preset Multiple Registers Command
C.12
Controlling Output
Contacts & Remote
Bits Using Modbus
The SIMPRO-100 Relay Modbus Register Map
(Table C.19 on page 187) includes three (3) fields
that allow a Modbus Master to control relay
output contacts and Relay Word Remote Bits
(see Chapter B, page 137). Use Modbus function
codes 06h or 10h to write the appropriate
command codes and parameters into the
registers shown in Table C.14.
Table C.14
Modbus Command Region
Table C.15 defines the command codes, their
function and associated parameters, and the
function code used to initiate the code.
Parameter 2 of Command Code 6 and
Parameter 1 of Command Code 7 are bit-masked
to allow you to manipulate several Remote Bits or
Data Regions simultaneously.
Bytes
Field
The Master Request must have the following format:
1 byte
Slave address
1 byte
Function code (10h)
2 bytes Starting address
2 bytes Number of registers to write
1 byte
Byte count (should be twice number of registers)
n bytes Byte count bytes of data
2 bytes CRC-16 for message
A successful SIMPRO-100 relay response will have the
following format:
1 byte
Slave address
1 byte
Function code (10h)
2 bytes Starting address
2 bytes Number of registers
2 bytes CRC-16 for message
Address
Field
0030h
Command Code
0031h
Parameter 1
0032h
Parameter 2
Summary of Contents for SIMPRO-100
Page 1: ...SIMPRO 100 Motor Protection Relay Instruction Manual Document No PRIM 2400C ...
Page 12: ...Contents SIMPRO 100 x PRIM 2400C ...
Page 16: ...Contents SIMPRO 100 xiv PRIM 2400C ...
Page 42: ...3 SIMPRO PC Software SIMPRO 100 40 PRIM 2400C ...
Page 100: ...6 ASCII Serial Port Operation SIMPRO 100 98 PRIM 2400C ...
Page 127: ...SIMPRO 100 Event Analysis 9 PRIM 2400C 125 Figure 9 2 Example SER Report ...
Page 136: ...10 Maintenance Troubleshooting SIMPRO 100 134 PRIM 2400C ...
Page 138: ...A Firmware Versions SIMPRO 100 136 PRIM 2400C ...
Page 206: ...D SIMPRO PC Compatibility Features SIMPRO 100 204 PRIM 2400C ...
Page 214: ...E Motor Thermal Element SIMPRO 100 212 PRIM 2400C ...
Page 230: ...F SIMPRO 100 Relay Settings Sheets SIMPRO 100 228 PRIM 2400C ...
Page 239: ......