GE VersaMax, Руководство пользователя

Страница: 448 / 504

GFK-1504K Chapter 13 Mixed Discrete/High-speed Counter Module 13-25
13
IC200MDD841
Mixed Module, 24VDC Positive Logic Input 20 Points / Output 12 Point /
(4) High Speed Counter, PWM, or Pulse Train Configurable Points
Command
Word (hex)
Command Description
0n15 Load OFF Preset Sets up the output turn off points within the counter range. There is one output
associated with each counter.
Example: To set counter 1 output to turn off at 12000 (2EE0H) counts, load:
Command Code: 0115
LS data word: 2EE0
0n1F Load Preload Changes the count value loaded into the counter Accumulator when the Preload
input is activated.
Example: To make counter 1 start at 2500 (09C4H) counts at its preload signal,
load:
Command word: 011F
LS data word: 09C4
0n3B Load Stop Mode
(or Resume
Decelerate
Mode)
Changes a Pulse Train output’s deceleration to stop the Ramp immediately when
the Output Enable bit goes Off. The Ramp function must be enabled.
Example: to set up a Pulse Train output for Stop Ramp (0002) operation on ch.1:
Command word: 013B
LS data word: 0002
The same command can be used to reset the output to Decelerate mode (the
default) by entering the value 0001 in the LS data word.
Example: reset the same Pulse Train output to Decelerate (0001) operation:
Command word: 013B
LS data word: 0001
0n3C Load
Acceleration
Changes a Pulse Train output’s acceleration. The Ramp function must be
enabled. Both acceleration and deceleration can be selected from the range of
10 p/s
2
to 1,000,000 p/s
2
. The default for both is 1,000,000.
In the acceleration and deceleration commands, the data value is a 32-bit
number. These are the ONLY Data Commands that should have any value other
than 0 in the MS data word.
Example: to change the acceleration rate of Pulse Train output 1 to 200,000
(30D40H), load:
Command word: 013C
LS data word: 0D40
MS data word: 0003
0n3D Load
Deceleration
Changes a Pulse Train output’s deceleration. The Ramp function must be
enabled.
Example: to change the deceleration rate of Pulse Train output 1 to 2,000
(700H), load:
Command word: 013D
LS data word: 700
0n3E Load Correction Sets the change (in microseconds) that should be applied to the duty cycle of a
Pulse Train output to compensate for the slow turn-off time of the optical isolator
circuit (default to 75 µ s). The range is 0 to 200 microseconds.
Example: to change the duty cycle of Pulse Train output 1 to 100 (64H), load:
Command word: 013E
LS data word: 64
PDFsupply.com