Horner APG XL10e OCS Built-in I/O Model 5 I/O User Manual
Page 3
MAN0953-02-EN
Specifications / Installation
1/6/2011
Page 3 of 4
5.1
Thermocouple Grounding Schemes
6
I/O Register Map
Register Summary
High Speed Counter / PWM-Stepper Register Summary
Registers
Description
Registers
PWM
HSC
Stepper
%I1 to %I24
Digital Inputs
%AQ1
PWM1 Duty
Cycle
(32 bit)
HSC1 Preset
Value
Start Frequency
%I32
Output Fault
%AQ2
Run Frequency
%I25 to %I31
Reserved
%AQ3
PWM2 Duty
Cycle
(32 bit)
HSC2 Preset
Value
Accel Count (32
bit)
%Q1 to %Q16
Digital outputs
%AQ4
%Q17
Clear HSC1 accumulator to 0
%AQ5
PWM Prescale
(32 bit)
Run Count (32
bit)
%Q18
Totalizer: Clear HSC2
Quadrature 1-2: Accumulator 1 Reset to max – 1
%AQ6
%Q19
Clear HSC3 Accumulator to 0
%AQ7
PWM Period
(32 bit)
Decel Count (32
bit)
%Q20
Totalizer: Clear HSC4
Quadrature 3-4: Accumulator 3 Reset to max – 1
%AQ8
%Q21 to %Q32
Reserved
%AI1 to %AI4
Analog inputs
%Q1
Run
%AI5, %AI6
HSC1 Accumulator
%I30
Ready/Done
%AI7, %AI8
HSC2 Accumulator
%I31
Error
%AI9, %AI10
HSC3 Accumulator
%AI11, %AI12
HSC4 Accumulator
%AQ1, %AQ2
PWM1 Duty Cycle
%AQ3, %AQ4
PWM2 Duty Cycle
%AQ5, %AQ6
PWM Prescale
%AQ7, %AQ8
PWM Period
%AQ9 to %AQ14
Analog outputs
Note:
These drawings are for illustrative purposes. Up to two channels
of thermocouple input are supported by the Model 5 I/O.
Ungrounded Thermocouples
Alternate Shield Connection for
Ungrounded Thermocouples.
Ungrounded Thermocouples
Preferred Shield Connection for
Ungrounded Thermocouples.
Grounded Thermocouples
Field Ground Potential Less Than
Seven Volts AC
Typical Shield Connection for
Grounded Thermocouples
Grounded Thermocouples
Field Ground Potential Less Than
Seven Volts AC
Shields Connected at One End Only
May be Used to Reduce Noise
Grounded Thermocouples May Use
the Ungrounded Thermocouple Shield
Connections if the Shield is not
Grounded at the Field End