IAI America MSCON - Manual (Page 183)

3.8 C
ontrol and functions of Input and output signals of Remote I/O Mode
175
[5] Alarm, alarm reset (*ALM, RES)
Input Output
PIO signal
RES *ALM
In common for
all PIO patterns
{ {
{ : Available, u: Unavailable
1) Alarm signal *ALM is set to ON in the normal status but turned OFF at the occurrence of an
alarm at a level equal to or higher than the operation release level.
2) Turning reset signal RES ON under occurrence of an alarm at the operation release level
allows the alarm (Note 1) to be released. The action is taken at the rising edge (ON edge).
3) The alarm reset should be done after the cause of the alarm is confirmed and removed. If
alarm reset and restart are repeated many times without removal of the cause, a severe
failure such as motor burnout may occur.
Note1: Check the 8.4 Alarm List for details of alarms.
Caution: Reset signal RES has two features, or alarm reset under occurrence of an
alarm and operation interruption (cancellation of remaining moving
distance) under temporary stop.
For the operation interruption under temporary stop, refer to the
description of the operation in each pattern.
[6] Binary output of alarm Information (*ALM, PM1 to 8)
Output
PIO signal
*ALM PM1 to 8
Common to
Patterns 0 to 2
{ {
Pattern 4 (Note 1)
{ u
Pattern 5 (Note 1)
{ u
{ : Available, u: Unavailable
Note1: Patterns 4 and 5 do not have this function.
1) If an alarm at a level equal to or higher than the operation release level occurs, completed
position number output signals PM1 to PM8 output the alarm information in the binary code
format.
2) The PLC can read the binary code of alarm signal *ALM as the strobe signal to refer to alarm
information.
[8.4.2 Driver Simple Alarm Codes]