Amtech Axpert-Eazy Series Instruction Manual page 173

In-built PLC Applications
Example 1
This example is used to control three signals by the use of two PSI.
As shown here if PSI1 will become Active and PSI2 is Inactive then RUN status will become
Active.
If PSI2 will become Active and PSI1 is Inactive then JOGGING status will become Active.
If both are Active at the same time then Fault will generate.
PSI1
PSI2
Program Code:
To write PLC program from display panel, programmer should keep following points in mind.
1. There is a PLC Program mode in Display Panel, which is Mode-P.
In Mode-P there are total 10 groups from P101 to PA01. So user can write up to 100
commands.
2. User has to start PLC programming from P101, and then continue to the P110.
After reaching there if user still want to enter commands then he should go to another group
P201 and start writing commands from there, likewise he can write 100 commands.
3. Now before start PLC programming, user should have knowledge of the PLC commands and
op-code.
4. If you will come to the P101 you will find 12-digit value. Here first 3-digit from left
is for OPCODE of commands you want to use. Second, third and fourth 3-digit depends upon
which Command you are using.
Example,
047001001000
047 is opcode of READ_PSI command.
001 is for memory location of Bit number (Flag no.1), which is user memory.
001 is for PSI1 status.
000 is not used.
Axpert-Eazy AC Variable Frequency Drive
XOR
AND
XOR
PLC1
(RUN)
PLC3
(FLT)
PLC2
Jogging
6
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