Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
21-6 Communications Instructions
The Status Bits, Sub-Element 17, of the MSG File Element are defined
below.
Message File Sub-Element 17 - Status bits
Bit Address Description Parameter Size User
Program
Access
15 Reserved N bit read only
14 MG11:0.0/ST Start:
1 = MSG transmitted and
acknowledged by target device
0 = MSG has not been received by
target
N bit read only
13 MG11:0.0/DN Done
1 = MSG completed successfully
0 = MSG not complete
N bit read only
12 MG11:0.0/ER Error
1 = error detected
0 = no error detected
N bit read only
11 Reserved N bit read only
10 MG11:0.0/EW Enabled and Waiting:
1=MSG Enabled and Waiting
0=MSG not Enabled and Waiting
N bit read only
1 to
9
Reserved N bit read only
0 MG11:0.0/R Range 1=Local, 0=Remote Y bit read only

Allen-Bradley MicroLogix 1200 Specifications

General

Series	MicroLogix 1200
Type	Programmable Logic Controller (PLC)
Mounting	DIN rail or panel mount
Programming Language	Ladder Logic
Programming Software	RSLogix 500
I/O Points	Up to 40
Communication Ports	RS-232, RS-485
Memory	6 KB user memory
Power Supply	24V DC or 120/240V AC
Expansion	Supports expansion I/O modules
Operating Temperature	0°C to 55°C (32°F to 131°F)
Dimensions	90 mm x 110 mm
Weight	0.5 kg (1.1 lbs)