
ICP DAS PMC-523x/PMC-224x/PMD Series User Manual
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(7) Module Data
This block stores all I/O channel data of M-7000/DL/IR modules, power data of
power meters and I/O channel data of Modbus TCP/RTU modules. Depend on
different configuration of I/O modules and power meters, the arrangement of data
block will be different. Detailed information is shown as below
:
1.
Make sure which connection port (RS-485-1, RS-485-2 or LAN), and which
index number the module is.
2.
[Module/Power Data]Calculate the value of SA (The starting Modbus address of
the data block of the module) based on the type of the connection port and the
index number.
SA = The starting Modbus address of Module/Power data(1) of the
connection port + (Module/Power Meter Index number - 1) x 1200
3.
[Power Meter Information] Calculate the value of PM_SA (The starting Modbus
address of basic information block of the power meter) based on the type of the
connection port and the index number.
PM_SA = The starting Modbus address of Power Meter Information(2) of
the connection port + (Power Meter Index number - 1) x 50
4.
Check the Modbus Address Table of each type module (shown as below), to
calculate the real I/O channel Modbus Address or real Loop (or Phase) power
data Modbus Address with SA value for the M-7000/DL, power meter and
Modbus TCP/RTU module that are connected to PMC/PMD.
5.
Check the Modbus Address Table of each type power meter (shown as below), to
calculate the real power meter attributes Modbus Address with PM_SA value
for the power meter that are connected to PMC/PMD.
For example: Assume there is an M-7024 module connected to the RS-485-2 of
PMC/PMD. Its module index number is 3. So the SA value of the M-7024 is 21000 +
(3 – 1) x 200) = 23400. The Modbus Address of the AO channel 2 of the module is
23400 + 04 = 23404. The M-7000/DL module Modbus Address Table is shown as
below:
Connection
port
Starting Modbus address of
Module/Power data(1)
Starting Modbus address of
Power Meter Information(2)
RS-485-1
1000
20200
RS-485-2
21000
40200
LAN
41000
60200