Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 9)

1–2 Terminal Overview
Publication 2706–816
All MessageView 421 terminals:
•
require a 24V DC power source
•
have a 128 x 32 pixel Vacuum Florescent Display (VFD)
•
have an RS-232 port on the main board
•
are programmed by an application created using MessageBuilder
software
•
can store up to 4096 messages and their data in a Historical Event
Stack
•
have multi-language capabilities
•
support a debug and a simulate mode of operation.
Terminals with 2.xx firmware:
•
can accept input from ASCII devices, such as bar code readers
•
can act as a master device with one or more slaves.
2706–M1D, -M1N, and -M1F terminals:
•
can be controlled via ASCII triggering
•
(2706-M1D only) can act as a slave to a MessageView terminal
or other master device.
MessageView 421 terminals perform a variety of machine
monitoring and control functions in a wide range of environmental
conditions.
!
ATTENTION: Do not use a MessageView terminal
for emergency stops or other controls critical to the
safety of personnel or equipment. Use separate
hard-wired operator interface devices that don’t depend
on solid state electronics.
Intended Uses