Rockwell Automation 2755 AtomScan Bar Code Reader - Manual (Page 130)

Application Examples E–14
Publication 2755-6.9
Note that Termination 1 is set for \0xa or Line Feed [LF], and
Termination 2 is set for \0xd or Carriage Return [CR]. These
terminators, along with the ARL instruction in the PLC-5
controllers, allow you to read one message at a time with [CR]
[LF] terminators.
PLC Program
The sample ladder logic listing below instructs the PLC-5 controllers
to:
Rung 2:0 – Read one string of ASCII data terminated with a
[CR] [LF] .
This application example describes how to configure and operate the
readers when using an RS-232 cable connected to a DTAM Plus
Operator Interface (Catalog Nos. 2707-L8P1D, 2707-L8P2D,
2707-L40P1D, 2707–L40P2D, 2707-V40P1D, 2707-V40P2D, or
2707-V40P2ND) on a DeviceNet network.
!
ATTENTION: Do not install the RS-232 cable with
power applied to either the interface box or DTAM
Operator Interface. Failure to follow this caution may
result in damage to the reader, interface box, or DTAM
Operator Interface.
DTAM Plus DeviceNet