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Rev 1. 1 05/08/19
- 37 -
TELSEC
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MP2 User Guide
Figure 50 - Defining Modbus registers
9.3.3.1
Modbus ID
The ID field is a unique alphanumeric four-character code used to identify the point in the system. This
is used for alarm programming, and SNMP to create a reference ID for the point. The four-character ID
can be whatever the user would like to use to organize the points. For example, you may want to have
IDs per device so later you can sort data based on the ID, Such as G001 for generator point 1, etc. You
may want to use the same numbering scheme when setting up multiple sites because the ID will also be
the SNMP index number for doing sets and gets.
9.3.3.2
Point Name
The point name will allow up to thirty-two characters to describe the point being monitored. The name
is case sensitive and will be displayed exactly as you typed it.
9.3.3.3
Function Code
The function code option tells the MP2 what type of Modbus register is being polled. 1 is for coil
registers, 2 is for digital inputs, 3 is for holding registers and 4 is for analog input registers. Select the
number for the type of register to be monitored.
9.3.3.4
Register Number
Enter the number of the register in the Register field. The MP2 uses 0 based numbering scheme for the
register numbers. If the register map uses the convention of 40000 series numbers for holding registers,
then subtract 40001 from the number and use that for the register number.
9.3.3.5
Register Bit
Some devices will use a single register with 16 bits to represent multiple pieces of information. This field
will allow you to select a specific bit of the 16-bit register. When using the bit function, the value of the
register will be displayed as ON for a value of 1 and OFF for a value of 0. Enter the bit number were 1