Delta Electronics Communication Module RTU-485 - Manual (Page 9)

Modbus Remote I/O Communication Module RTU-485
DVP-PLC Application Manual 7
4.2 Areas in Special Module
Communication
address
Devices Attribute Data type Length
H’1600 ~ H’1630 1 st special module: CR0 ~ CR48 word 49
H’1640 ~ H’1670 2
nd
special module: CR0 ~ CR48 word 49
H’1680 ~ H’16B0 3
rd
special module: CR0 ~ CR48 word 49
H’16C0 ~ H’16F0 4
th
special module: CR0 ~ CR48 word 49
H’1700 ~ H’1730 5
th
special module: CR0 ~ CR48 word 49
H’1740 ~ H’1770 6
th
special module: CR0 ~ CR48 word 49
H’1780 ~ H’17B0 7
th
special module: CR0 ~ CR48 word 49
H’17C0 ~ H’17F0 8
th
special module: CR0 ~ CR48
Please refer to
theCR attribute of
each special
module.
word 49
Note:
Maximum 8 special modules are connectible to RTU-485. The first special module connected is the nearestone
on the right hand side of RTU-485, and so on.
4.3 Special Functions
Communication
address
Attribute Content Explanation
H’0000 R Model name
Set up by the system. Model code of RTU-485 =
H’0200.
H’0001 R Firmware version
The current firmware version is displayed in hex,
e.g. V0.1 is indicated as H’0010.
H’0002 R Issue date
The issue data of the firmware is displayed in
hex, e.g. H’1FD0 = K8150 indicates that the
firmware is issued on the morning of August 15.
H’0003 R/W RUN/STOP RTU-485
H’0003 = K1, RTU-485 RUN;
H’0003 = K0, RTU-485 STOP.
H’0004 R Communication format
Displaying the communication format of
RTU-485.
H’0005 R Baud rate Displaying the baud rate of RTU-485.
H’0006 R
Communication
address Displaying the communication address of
RTU-485.
H’0007 R
Number of DI/DO
points High byte stores the number of input points. Low
byte stores the number of output points.
H’0008 R Error code
Recording the current error. See 17.4.4 for the
meaing of error codes.
H’0009 R Historical error code
The number of errors occurring.
Range: 0 ~ 32
H’0017 R
Number of special
modules The number of special modules RTU-485
detects.
H’0018 R
Model code of the 1
st
special module
The model code of the 1
st
special module
connected to RTU-485.
H’0019 R
Model code of the 2
nd
special module
The model code of the 2
nd
special module
connected to RTU-485.
H’001A R
Model code of the 3
rd
special module
The model code of the 3
rd
special module
connected to RTU-485.
H’001B R
Model code of the 4
th
special module
The model code of the 4
th
special module
connected to RTU-485.