Rockwell Automation 1398-PDM-xxx IQ Master Version 3.2.4 for IA-2000 and IQ-5000 Positioning Drive Modules, IQ-55 User Manual

Page 329

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Variables and Flags Assignment and Request Commands • Outputs – Analog and Digital

307

Publication 1398-PM601A-EN-P — October 2000

HOST M

O

DE

IPREL

TRUE for relative In-Position output.
FALSE for absolute In-Position output.

F

R/W

Y

MDAC

Monitor DAC value. This parameter is write-only and
sets the MON analog output value. This output is nor-
mally updated internally but may be set directly if no
MON variable is being converted. (See MONOUT.)

V

W

N

MONOUT

Select the monitor variable for MON DAC output.

V

R/W

Y

MVO

TRUE if internal monitor velocity output (MVO) is
enabled. This 8-bit analog PWM output, if enabled,
always monitors feedback velocity. The output does
not go off-board but exists as a diagnostics tool. This
flag is FALSE on power-up.

F

R/W

N

O1

O24

Digital outputs status (1=ON, 0=OFF).

F

R/W

N

OB1
OB2
OB3

These read-only variables access the status of the digi-
tal outputs as an entire block. Bits 0..7 correspond to
outputs 1..8. If an I/O expansion card is present, the
OB2 and OB3 commands access outputs 8..16 and
17..24 respectively.

byte

R

N

OCHG1
OCHG2
OCHG3
OSET1
OSET2
OSET3

These parameters work together to define the state of
the outputs when a program ends. Bits 0..7 of OCHG1
or OSET1 correspond to outputs 1..8. If additional
outputs are available, OCHG2 or OSET2 and OCHG3
or OSET3 correspond to outputs 9..16 and 17..24
respectively. The “OCHG” bits indicate which outputs
should be updated (1) or left unchanged (0). If a value
is to be updated, the “OSET” bits indicate whether the
corresponding output is to be turned ON (1) or OFF
(0).

byte

R/W

Y

RAMPD

TRUE to continually ramp DAC1 between

±

10 volts.

F

R/W

N

RAMPM

TRUE to continually ramp MON between

±

10 volts.

These commands are normally used only by diagnos-
tics and require that the DAC1 or MON first be dis-
abled.

F

R/W

N

RRLY

TRUE if the READY relay is enabled.

F

R/W

N

RUNEN

TRUE to enable Program Running output.

F

R/W

Y

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