Inview Display Communication Protocol Functions And Descriptions; Inview Message Format Used Within Modbus Ascii Protocol - Spectrum Controls InView Series User Manual

4-32 Chapter 4: InView Protocol
Beg of
ADDR
Frame
: 14
DATA OUTPUT
REG H.O. 0068
00
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ADDR
Frame
: 05
NOTE

InView Display Communication Protocol Functions and Descriptions

InView Message Format used within Modbus ASCII Protocol

User's Manual 0300277-02 Rev. D
Response for Requesting Variable Data
BYTE OUTPUT
FUNC
COUNT
H.O. 0002
03 006
DATA OUTPUT
REG L.O. 0068
01
Change the InView Display Address
This function allows the ability to change the serial address in a display. For
example, change display address 001 to address 020. When doing this, you need
to know the address of the display you want to change. This is typically done
using the automation software. The following is an example of changing a
display (with the address of 005) to address 004.
Transmission is as follows:
Transmission for Changing the Serial Address
H.O L.O
FUNC
ADDR ADDR
01 00
See InView Display Communication Protocol Functions and Descriptions
on for further explanation of the InView sign protocol being used.
Response: NONE
The InView display communication protocol that is used in conjunction with the
Modbus ASCII protocol is mostly limited due to the number of functions and
features that required by the InView products. This Protocol can be used for
downloading new messages of alpha numeric messages from an Allen-Bradley
controller.
Information that is used within the InView message is formatted differently than
that of the standard protocol. The following table shows the basic message structure
with a brief explanation of each part.
DATA DATA
OUTPUT
REG REG L.O.
0002
00 2C
LRC Error EOF
77
DATA
64 ^AZ05^BE704^D
DATA
OUTPUT DATA OUTPUT
REG H.O. REG L.O. 0003
0003
00 3F
Ready to
rec.
response
CR LF
Ready to rec.
EOF
response
CR LF