Delta AS Series Programming Manual page 994

 After DMV detection is finished, Ready is set from Off to On. The PLC starts to judge if Ready is on after waiting for 1.5
times the input filtering time. The PLC receives the message that Ready changes from Off to On and sends a read
command via Modbus 0x03.
 The Ok flag is set to On after the PLC receives the communication data sent back from DMV. At the moment, the already
received data can be processed.
 The Start1 and Ok flags can be cleared to Off by manual.
 If the detection need be retriggered to execute, directly set Start1 to On to start the next-round DMV detection. (Return
to step 2 to continue.)
Example 2
Mode = 1
Set1 and set2 are used to trigger the DMV detection separately. But the communication data reading command can not
be sent until both Readys change to On. (The example is applicable to the two-camera DMV1000 detection.)
See the sequence control diagram below.
En
Start1
Shoot1
Ready
Start2
Shoot2
Com.
port
Ok



 


Cha p ter 6 App l ied Ins truc tio ns
send
receive
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