Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 16)

1–9 Terminal Overview
Publication 2706–816
RS-232 Port
MessageView 421 terminals have a standard RS-232 port.
RS-232 Port
Use the RS-232 port to:
•
download/upload MessageView applications from/to a personal
computer
•
upload Historical Event Stack to a personal computer
•
download time and date to a MessageView terminal from a
personal computer
•
accept ASCII input or ASCII triggering
•
send messages to a slave device
•
accept commands as a slave device (Catalog No. 2706-M1D
only).
Remote I/O Port
MessageView 421 terminals with a Remote I/O port (Catalog Nos.
2706-M1D1, -M1N1, -M1F1) can communicate with a logic
controller on a Remote I/O network.
Remote I/O Port
Use the Remote I/O port to:
•
communicate with the Remote I/O scanner port on a PLC
controller
•
communicate with SLC controllers using a 1747-SN Remote I/O
scanner module
•
communicate with other Remote I/O scanners.
Communications Overview