Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
400 Communications Instructions
The Target file information contained in Sub-Elements 12…15 of the MSG
File Element depend upon the message type, as shown in the tables
below.
12 Target Location information (See tables on page 401 for options) Y Word read only
13 MG11:0.TFN Y Word read/write
14 MG11:0.ELE Y Word read/write
15 Y Word read only
16 Control bits (See Control Bits table on page 402 for details) N 16-bit
s
read/write
17 Status bits and Range parameter (See table on page 403 for details) Mixed 16-bit
s
read only
18 MG11:0.ERR Error code (See Error Codes on page 466) N Word read only
19 Time since message started in seconds N Word read only
20 Reserved Word read only
21 Internal message start time in seconds N Word read only
22 bits 15-08: Internal ERR Error Code
bits 07-00: Internal Fail Code
Note: When CIP sub-system cannot send a message due to some
reason or reply contains error code, error code is displayed via MSG
instruction. When messaging through CIP communication and
non-zero Status Code was received, the low byte is 0xE0 and the high
byte of this sub-element contains detailed Status Code returned by
CIP reply for MicroLogix 1400
Note: When SMTP sub-system cannot send an email due to some
reason, error code is shown via MSG instruction. When messaging
through SMTP communication and the low byte is 0xDD, the high
byte of this sub-element contains detailed Fail Code returned by the
SMTP sub-system for MicroLogix 1400.
N Word read only
23 Extended Status Error Code from expansion I/O communications
module.
24
(1)
Supplemental Routing Path Data Address:
bits 7…0: Starting Element, bits 15…8: File Number
(1) Channel 1 only. Refer to the Routing Information File on page 434.
(2) User access refers to user program access (MSG File word or bit used as an operand for an instruction in a ladder program) or access via Comms while in any mode other
than download (via Programming Software or Memory Module).
Message File Elements
Sub-
Element
Name Description Paramet
er
Size User Program
Access
(2)
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Allen-Bradley MicroLogix 1400 Specifications

General

Processor	32-bit
Expansion Modules	Up to 7 expansion I/O modules
Power Supply	24V DC or 120/240V AC
Programming Software	RSLogix 500
Communication Ports	Ethernet, RS-232/RS-485 combo port
Controller Type	Programmable Logic Controller (PLC)
Series	MicroLogix
Digital Outputs	12
Analog Inputs	6 (embedded)
Analog Outputs	2 (embedded)
High-Speed Counter	6 high-speed counters
Pulse Output	2 (embedded)
Ethernet Port	Yes