Allen-Bradley micrologix 1500 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 1500 Specifications

General

Processor Type	16-bit
Programming Language	Ladder Logic
Mounting	DIN rail or panel mount
Programming Software	RSLogix 500
Communication Ports	RS-232
Power Supply	24V DC
Operating Temperature	0°C to 55°C (32°F to 131°F)
Controller Type	Programmable Logic Controller (PLC)