Dp/V1 Examples - GE VersaPoint IC220PBI002 User Manual

DP/V1 Examples

The examples on the following pages show how objects on the NIU and the I/O
modules can be read and written.
Modules in the Examples
In this example, the VersaPoint I/O Station includes:
Slot 0: Profibus-DP NIU, IC220PBI002
Slot 1: 24V 8-Point Discrete Output Module IC220MDL753
Slot 2: 24V 8-Point Discrete Input Module, IC220MDL643
Slot 3: RS-232 Communications Module, IC220BEM232
Slot 4: Analog 2-Ch. Voltage/Current Input Module IC220ALG220
Slot 5: Analog 1-Ch. Voltage/Current Output Module, IC220ALG320
Object Dictionary of the RS-232 Communications Module
Index
(hex)
5FC1 Variable of
Unsigned 8
5FE0 String
Variable of
Octet String
5FFF Array of
Unsigned 8
Example Object Description
The Object Description below is a write service that writes the INIT-TABLE object
to configure the RS-232 module.
Object
Access
Data Type
Index
Subindex
Length
(bytes)
Data
GFK-1911B Chapter 8 Communications
Data Type Number of
Elements
1
1
20
INIT-TABLE
Read, write
Array of Unsigned 8
5FFF
hex
00 Write all elements
hex
01 Protocol
hex
02 Baud rate
hex
03 data width
hex
04 , 05 Reserved
hex hex
06 Error Pattern
hex
07 First Delimiter
hex
08 Second Delimiter
hex
14 Sunindex 00
hex hex
01 Subindex 01 to 14
hex hex
VersaPoint RS-232 module configuration
Length Meaning
(bytes)
1 Module start
indicator
58 Transmit/
receive RS-
232 data
1 Module
configuration
09
hex
0A
hex
0B
hex
0C
hex
0D
hex
0E
hex
0F to 14
hex hex
hex
Object Access
Name Permitted
START-IND read/write
V24-DATA read/write
INIT-Table read/write
3964R Priority
Output type
DTR control system
Rotation switch/
XON Pattern
XOFF Pattern
Reserved
8
8-9