Electro Cam PL-1746 Series - Manual (Page 141)

Appendix-2 Output Pulse Programming
Output Pulse Programming
Once the Read command is sent, the information requested will be written to the M0 files (see table 2).
In this example you would see the following information returned:
Info returned M0 file Purpose
90 M0:S.898 On: start position of pulse
180 M0:S.899 Off: end position of pulse
0 M0:S.900 Number of the pulse being read
1 M0:S.901 Quantity of pulses in the channel
Where to monitor outputs for use in a ladder program:
The ON/OFF status for each of the 32 outputs (or channels) can be monitored in the first two 16 bit input words.
I:S.0 Outputs 0-15
I:S.1 Outputs 16-31
Special pulse edits:
To clear all pulses in a channel write a pulse of ON = 0, OFF = 0.
To delete one of the pulses in a channel containing multiple pulses change the OFF value to equal the ON value.
To turn a channel on all the time write a pulse of ON = 1, OFF = 1.
Table 1: Data requirements in M0 files before executing specific commands.
Command
Program Channel On/off *Pulse #
Read x x x*
Write x x x
Inc ON x x x*
Dec ON x x x*
Inc OFF x x x*
Dec OFF x x x*
Inc both ON/OFF x x x*
Dec both ON/OFF x x x*
Inc all in channel x x
Dec all in channel x x
Change ON x x x (ON) x*
Change OFF x x x (OFF) x*
*Pulse number only required if there is more than one pulse in a channel.
Table 2: Where to write (& read) pulse edit data.
M0:S.896
Program number
M0:S.897 Channel number
M0:S.898 On: Start position of pulse
M0:S.899 Off: End position of pulse
M0:S.900 Number of the pulse being read
M0:S.901 Quantity of pulses in the channel (read only)
Table 3: Command Status Register M0:S.902.
Bit #
Purpose
0 command (execute / busy)
1 command bit
2 command bit
3 command bit
4 command bit
5 - 9 not used
10 error: incorrect pulse number entered
11 error: ON pulse out of scale factor range
12 error: OFF pulse out of scale factor range
13 error: channel number out of range
14 error: program number out of range
15 error: any above error causes this bit to go high