421n terminal features – Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL User Manual
Page 12

1–5
Terminal Overview
Publication 2706–816
The following illustrations show the major features of the
MessageView 421N terminals (Catalog No. 2706-M1N1 and -M1N).
Front View
➀
➁
➂
➃
➄
➅
➆
Item
Description
1
Vacuum Florescent Display (VFD) can display graphics and text:
4 lines of 21 quarter size characters
2 lines of 10 half size characters or 2 lines of 5 graphic symbols
1 line of 7 full size characters.
2
Numeric keys allow an operator to enter numeric values.
3
+ /- key for entering either positive or negative values.
4
Decimal point key for entering decimal values.
5
Up and Down cursor keys:
Enter / edit numeric values
Scroll through and highlight options on the Front Panel Editor menu
Scroll through the Historical Event Stack
Select data entry fields within a message.
6
ACK key acknowledges messages which require an operator response.
7
Enter key selects an option from the Front Panel Editor menu or sends data to a
PLC/SLC.
421N Terminal Features