Data Computation Standards; Pulse Outputs; Synchronized Pulse Control - Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual

Data Computation Standards

2-8 Data Computation Standards

2-8-1 Pulse Outputs

Delays in Frequency
Changes
Pulse output
Maximum delay (ms) = One period of the current pulse output 2 + 10 + instruction execution time
Frequency Error

2-8-2 Synchronized Pulse Control

Delay in Start of Pulse
Output
Pulse input
Pulse output
Maximum delay (ms) = One period of the pulse input x 2 + 16.25
Delays in Frequency
Changes
Pulse input
Pulse output
Maximum delay (ms) = One period of the current pulse output 2 + 10
Delay in Stop of Pulse
Output
Pulse input
Pulse output
Maximum delay (ms) = Setting in DM 6642 (see below) + One period of the current pulse output B 2 + 10
146
The degree of error and performance in pulse outputs and synchronized pulse
control are described in this section.
There will be a delay before a change in the frequency during pulse output is
actually applied to the output, as shown below.
Frequency
changed
Delay
There will be an error between the frequency of the output pulse and the set fre-
quency of less than
The following diagram shows the delay that will occur between starting synchro-
nized pulse control and the start of actual pulse output.
Delay
There will be a delay before a change in the frequency during pulse output is
actually applied to the output when performing synchronized pulse control, as
shown below.
Delay
The following diagram shows the delay that will occur between stopping syn-
chronized pulse control (0 Hz) and the end of actual pulse output during synchro-
nized pulse control.
Setting of
DM 6642 bits 08 to 15
02
03
04
1% due to internal processing error.
Delay
Frequency range
10 to 500 Hz
20 Hz to 1 kHz
300 Hz to 20 kHz
Section 2-8
Delay
262 ms
66 ms
4 ms