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DL205 User Manual, 4th Edition, Rev. B
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Chapter 5: Intelligent Box (IBox) Instructions
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ECOM100 WX Network Write(ECWX) (IB-741)
ECOM100 WX Network Write performs the WX instruction with built-in interlocking with
all other ECOM100 RX (ECRX) and ECOM100 WX (ECWX) IBoxes in your program to
simplify communications networking. It will
perform the WX on the specified
ECOM100#'s network, which corresponds to
a specific unique ECOM100 Configuration
(ECOM100) IBox at the top of your program.
The Workspace parameter is an internal,
private register used by this IBox and MUST
BE UNIQUE in this one instruction and
MUST NOT be used anywhere else in your
program.
Whenever this IBox has power, it will write
data from the master's V-memory buffer to the
specified slave starting with the given slave element, giving other ECOM100 RX and
ECOM100 WX IBoxes on that ECOM100# network a chance to execute.
For example, if you wish to read and write data continuously from 5 different slaves, you can
have all of these ECRX and ECWX instructions in ONE RUNG driven by SP1 (Always On).
They will execute round-robin style, automatically!
ECWX Parameters
• ECOM100#: this is a logical number associated with this specific ECOM100 module in the
specified slot. All other ECxxxx IBoxes that need to reference this ECOM100 module must
reference this logical number
• Workspace: specifies a V-memory location that will be used by the instruction
• Slave ID: specifies the slave ECOM(100) PLC that will be targeted by the ECWX instruction
• From Master Element (Src): specifies the location in the master ECOM100 PLC where the data
will be sourced from
• Number of Bytes: specifies the number of bytes to write to the slave ECOM(100) PLC
• To Slave Element (Dest): specifies the slave address the data will be written to
• Success: specifies a bit that will turn on once the request is completed successfully
• Error: specifies a bit that will turn on if the instruction is not successfully completed
DS5 Used
HPP N/A
Parameter DL205 Range
ECOM100# . . . . . . . . . . . . . . . . . . . . . . . . . . . . K K0-255
Workspace . . . . . . . . . . . . . . . . . . . . . . . . . . . . V See DL205 V-memory map - Data Words
Slave ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K K0-90
From Master Element (Src) . . . . . . . . . . . . . . . V See DL205 V-memory map - Data Words
Number of Bytes . . . . . . . . . . . . . . . . . . . . . . . K K1-128
To Slave Element (Dest) . . X,Y,C,S,T,CT,GX,GY,V See DL205 V-memory map
Success . . . . . . . . . . . . . . . . . . . . X,Y,C,GX,GY,B See DL205 V-memory map
Error . . . . . . . . . . . . . . . . . . . . . . . X,Y,C,GX,GY,B See DL205 V-memory map
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