Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
Function Files 3-15
12 0 to 7 NAK – No Memories Sent
8 to 15 NAK – No Memories Received
13 0 to 7 Total Bad Message Packets Received
8 to 15 Reserved
14 to 22 - Reserved
Table 3.13 DF1 Full-Duplex Diagnostic Counters Block
Word Bit Description
6 - Diagnostic Counters Category Identifier Code (always 2)
7 - Length (always 30)
8 - Format Code (always 1)
9 0 CTS
1RTS
2Reserved
3 Channel 0 - Reserved, Channel 1 - DCD
4 to 15 Reserved
10 - Total Message Packets Sent
11 - Total Message Packets Received
12 - Undelivered Message Packets
13 - ENQuiry Packets Sent
14 - NAK Packets Received
15 - ENQuiry Packets Received
16 - Bad Message Packets Received and NAKed
17 - No Buffer Space and NAK’ed
18 - Duplicate Message Packets Received
19 to 22 - Reserved
Table 3.14 DF1 Half-Duplex Slave Diagnostic Counters Block
Word Bit Description
6 - Diagnostic Counters Category Identifier Code (always 2)
7 - Length (always 30)
8 - Format Code (always 2)
9 0 CTS
1RTS
2Reserved
3 Channel 0 - Reserved, Channel 1 - DCD
4 to 15 Reserved
10 - Total Message Packets Sent
11 - Total Message Packets Received
12 - Undelivered Message Packets
13 - Message Packets Retried
Table 3.12 DH-485 Diagnostic Counters Block
Word Bit Description

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)