Datexel DAT 3015-I Panduan Pengguna

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Halaman Cetak
Current Input to RS485 MODBUS
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User Guide – MODBUS protocol
User Guide – MODBUS protocol
Firmware Version : 3310
Firmware Version : 3310
All the data variables shared by a Modbus module are shown in tables, where each data is linked to one address.
Each data can be of two types:
- "COIL", composed by a single bit, can be associated to digital input (switch), digital outputs (relays), logic states (alarms).
- "REGISTER", composed by 2 bytes (16 bits), can be associated to analog input or outputs, variables, set-point, etc...
A register can also include the image of more coils, for example the 16 digital inputs of a device can be read and write as bit, one by one, addressing
the relative coil , or they can be read or write as a single 16-bit port addressing the associated register, where for example the last significant bit will
respond to the first coil.
In the Modbus protocol, coils and registers are divided in banks:
0xxxx and 1xxxx = Coils (bits)
3xxxx and 4xxxx = Registers (words)
REGISTERS TABLE
Register
Description
40001
Test
40002
Firmware Version
40003
40004
Device Name
40005
40006
Communication
40007
Address
40008
RX/TX Delay
40009
Watchdog Timer
40010
Coils
40011
-- (reserved)
40012
Channel Enable
40013
-- (reserved)
40014
-- (reserved)
40015
Input # 0
40016
Input # 1
40017
Input # 2
40018
Input # 3
40019
-- (reserved)
40020
-- (reserved)
40021
-- (reserved)
40022
-- (reserved)
40023
Sync. value input # 0
40024
Sync. value input # 1
40025
Sync. value input # 2
40026
Sync. value input # 3
40027
-- (reserved)
40028
-- (reserved)
40029
-- (reserved)
40030
-- (reserved)
NOTE:
The registers marked with ' * ' in the ' E
EEPROM each time they are written, to be automatically reloaded
to each power-on of the device.
PRELIMINAR DESCRIPTION
Access
E
2
P
R/W
R
R
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
R/W
*
R/W
*
R/W
*
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
2
P ' column are saved in
Distributed I/O device
4 channels V or mA inputs
COILS TABLE
Coil
Description
00009
Watchdog Enable
00010
Watchdog Event
00011
Power Up Event
IMPLEMENTED MODBUS FUNCTIONS
Function
Description
01
Read multiple coils (0xxxx bank)
02
Read multiple coils (1xxxx bank)
03
Read multiple registers (4xxxx bank)
04
Read multiple registers (3xxxx bank)
05
Write single coil
06
Write single register
15
Write multiple coils
16
Write multiple registers
08
Diagnostic
NOTE:
For DAT3000 series devices, the bank 0xxxx is a mirror of bank
1xxxx, as the 3xxxx bank is a mirror of bank 4xxxx, as for i.e. the
first register can be read indifferently as 30001 (with the function
04) or 40001 (with the function 03)
on RS-485 network
DAT 3015-V
DAT 3015-V
DAT 3015- I
DAT 3015- I
Access
R/W
R/W
R/W
E
2
P
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