GE GFK-1004B Manual Do Utilizador

4-35

GFK-1004B

Chapter 4 Programming Communications Requests

The ladder program segment below illustrates how to incorporate these important
points in your program.

Note

The input values for the Block Move Functions in this example are taken
from the Establish Read Channel Command example in Section 3 of this
chapter.

Nicknames have used in this example to make the ladder program
easier to follow. LANIFOK is bit 16 of the LAN Interface Status bits. All
other nicknames can be assigned as you desire.

| << RUNG 1 >>
|
|LANIFOK HEALTHY
+——] [—————————————————————————————————————————————————————————————————————( )——
|
| << RUNG 2 >>
|
|BEGREAD READREQ
+——] [—————————————————————————————————————————————————————————————————————(

↑

)——

|
| << RUNG 3 >>
|
|HEALTHY READREQ +—————+ CMRQFLT
+——] [—————] [———+MOVE_+———————————————————————————————————————————————————(R)——
| |WORD |
| | |
| CONST —+IN Q+—%R00010
| +0000 | LEN |
| |00001|
| | |
| +—————+
| << RUNG 4 >>
|HEALTHY READREQ +—————+ +—————+ +—————+
+——] [—————] [———+BLKMV+—————————————————+BLKMV+—————————————————+BLKMV+
| | INT | | INT | | WORD|
| | | | | | |
| CONST —+IN1 Q+—%R00301 CONST —+IN1 Q+—%R00308 CONST —+IN1 Q+—%R00315
| +00017 | | +00005 | | +00008 | |
| | | | | | |
| CONST —+IN2 | CONST —+IN2 | CONST —+IN2 |
| +00000 | | +00010 | | +00050 | |
| | | | | | |
| CONST —+IN3 | CONST —+IN3 | CONST —+IN3 |
| +00008 | | +00003 | | +00008 | |
| | | | | | |
| CONST —+IN4 | CONST —+IN4 | CONST —+IN4 |
| +00009 | | +00004 | | +00001 | |
| | | | | | |
| CONST —+IN5 | CONST —+IN5 | CONST —+IN5 |
| +00000 | | +00050 | | +00004 | |
| | | | | | |
| CONST —+IN6 | CONST —+IN6 | CONST —+IN6 |
| +00000 | | +00008 | | +00003 | |
| | | | | | |
| CONST —+IN7 | CONST —+IN7 | CONST —+IN7 |
| +02003 +—————+ +00100 +—————+ +00000 +—————+
|
|