DL205 User Manual, 4th Edition, Rev. B
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Chapter 5: Intelligent Box (IBox) Instructions
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ECOM100 RX Network Read (ECRX) (IB-740)
ECOM100 RX Network Read performs the RX 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 RX 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 read
element data from the specified slave into the
given destination V-memory buffer, 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!
ECRX 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 ECRX instruction
• From Slave Element (Src): specifies the slave address of the data to be read
• Number of Bytes: specifies the number of bytes to read from the slave ECOM(100) PLC
• To Master Element (Dest): specifies the location where the slave data will be placed in the master
ECOM100 PLC
• 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 Slave Element (Src) X,Y,C,S,T,CT,GX,GY,V
See DL205 V-memory map
Number of Bytes . . . . . . . . . . . . . . . . . . . . . . . K
K1-128
To Master Element (Dest) . . . . . . . . . . . . . . . . V
See DL205 V-memory map - Data Words
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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