Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA Bedienungsanleitung Seite 61

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Publication 1747-6.1
Chapter
8
Message Capability
This chapter provides:
an overview of the message types
programming parameters for the MSG instruction
control block configuration for the 5/02 and 5/03 MSG
instructions
operational descriptions of the message types
sample SLC 5/02 user programs
Message Overview
The module supports six types of messages. The table below
describes the functions of each:
Other module message capabilities are:
display Write messages from any DH485 network device with
message capability
display messages in the Monitor or Modify modes
enter data in the Monitor or Modify modes
message overwrite protection
Message Type Functions
8-Word
16 characters
Displayed on one line
Display-only
16-Word
32 characters
Displayed on two lines
Display-only
12-Word
16 characters
Operator reply
Initial value of zero
13-Word
16 characters
Operator reply
User-defined initial value
18-Word
16 characters
Operator reply
User-defined initial value
User-defined acknowledge bit addresses
1-Word
Clear message
Important: SLC 500 Fixed and SLC 5/01 Modular Controllers do
not support message capability.
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