Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
Using High-Speed Outputs 157
• Set (1) - Whenever a PTO instruction is generating continuous Jog
Pulses
• Cleared (0) - Whenever a PTO instruction is not generating
continuous Jog Pulses.
PTOX Error Code (ER)
PTOX ER (Error Codes) detected by the PTO sub-system are displayed in
this register. The error codes are shown in the table below:
Sub-Element
Description
Address Data Format Range Type User Program
Access
ER - Error Code PTOX:0.ER word (INT) -3…7 status read only
Pulse Train Output Error Codes
Error
Code
Non-Use
r Fault
Recoverabl
e Fault
Instructio
n Errors
Error
Name
Description
-3 No Yes Yes Undefine
d Accel/
Decel
Acceleration Count and Deceleration not defined during going to run mode
when Accel/Decel Pulses Independent (ADI) is set (1).
-2 Yes No No Overlap
Error
An output overlap is detected. Multiple functions are assigned to the same
physical output. This is a configuration error. The controller faults and the
User Fault Routine does not execute. Example: PTO0 and PTO1 are both
attempting to use a single output.
-1 Yes No No Output
Error
An invalid output has been specified. Output 2, output 3 and output 4 are
the only valid choices. This is a configuration error. The controller faults and
the User Fault Routine does not execute.
0 --- --- Normal Normal (0 = no error present)
1 No No Yes Hardstop
Detected
This error is generated whenever a hard stop is detected. This error does
not fault the controller.
To clear this error, scan the PTO instruction on a false rung and reset the EH
(Enable Hard Stop) bit to 0.
2No No Yes Output
Forced
Error
The configured PTO output (2, 3 or 4) is currently forced. The forced
condition must be removed for the PTO to operate.
This error does not fault the controller. It is automatically cleared when the
force condition is removed.
3 No Yes No Frequenc
y Error
The operating frequency value (OFS) is less than 0 or greater than 100,000.
This error faults the controller. It can be cleared by logic within the User
Fault Routine.
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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