Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
118 Using the High-Speed Counter and Programmable Limit Switch
Two Input Counter
(mode 3a)
(1)
Count Up Count Down Not Used Not Used 4
Two Input Counter with
External Reset and Hold
(mode 3b)
(2)
Count Up Count Down Reset Hold 5
Quadrature Counter
(mode 4a)
(1)
A Type Input B Type Input Not Used Not Used 6
Quadrature Counter with
External Reset and Hold
(mode 4b)
(2)
A Type Input B Type Input Z Type Reset Hold 7
Quadrature X4 Counter
(mode 5a)
(1)
A Type Input B Type Input Not Used Not Used 8
Quadrature X4 Counter
with External Reset and
Hold
(2)
A Type Input B Type Input Z Type Reset Hold 9
(1) HSC:3, HSC:4, and HSC:5 support mode 1a, 2a, 3a, 4a, and 5a only.
(2) Only valid for HSC:0, HSC:1, and HSC:2
HSC Function Operating Modes & Input Assignments
Modes of Operation Input 0 (HSC:0)
Input 4 (HSC:1)
Input 8 (HSC:2)
Input 2 (HSC:3)
Input 6 (HSC:4)
Input 10 (HSC:5)
Input 1 (HSC:0)
Input 5 (HSC:1)
Input 9 (HSC:2)
Input 3 (HSC:3)
Input 7 (HSC:4)
Input 11 (HSC:5)
Input 2 (HSC:0)
Input 6 (HSC:1)
Input 10 (HSC:2)
Input 3 (HSC:0)
Input 7 (HSC:1)
Input 11 (HSC:2)
Mode Value in
User Program
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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