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Network Instructions Section 3-24
3-24-10 EXPLICIT WORD WRITE: ECHWR(724)
Purpose Writes data from the local CPU Unit to another CPU Unit in the network.
This instruction can be used in the CP1H CPU Units only. It cannot be used in
the CP1L CPU Units. If ECHWR(724) is used in a CP1L CPU Unit, Error Flag
(ER) will be turned ON.
Ladder Symbol
Variations
Applicable Program Areas
Operands S: First Source Word in Local CPU Unit
Specifies the leading word address in the local CPU Unit containing the write
data.
D: First Destination Word in Remote CPU Unit
Specifies the leading word address of the write destination in the remote CPU
Unit.
C: First Control Word
Specifies the first of five control words (C to C+4).
15 8 7 0
D200 0 0 0 7
C+1: D201 0 0 0 3
C+2: D202 0 6 1 2
C+3: D203 0 0 0 0
C+4: D204 0 0
0
0
C:
Node address of remote CPU Unit to be read = 07 hex (node 07)
Read data size (number of words) = 3 hex
Communications port = 6 hex (port 6),
and the DeviceNet Unit’s unit address = 12 hex
Response monitoring time = 0000 hex (2 s)
Explicit format type = 0000 hex (DeviceNet format)
ECHWR(724)
S
D
C
S: First source word in local CPU Unit
D: First destination word in remote CPU Unit
C: First control word
Variations Executed Each Cycle for ON Condition ECHWR(724)
Executed Once for Upward Differentiation @ECHWR(724)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
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