Message operation, Example, Data file format – Rockwell Automation 1203-EN1 EtherNet/IP-to-SCANport Module User Manual
Page 157: Scattered parameter value write, F-13
Supported Emulated Block Transfer Commands
F-13
Message Operation
Scattered Parameter Value Read reads a predefined group of
parameter values, in any order, from the device. You define the number
of parameters to read in word 2 of the request. The parameters to be read
and their order is defined starting with word 3. An unused word is left
between each parameter request, so the drive can respond with the
parameter value, as shown.
If an error has occurred in reading any of the parameters:
• Word 1 of the drive response returns a value of –32765.
• Bit 15 of the drive response word for the number of that parameter is
set.
• The drive response word for the value of that parameter returns a
status word instead of returning the parameter value.
Example
In this example, eight parameters were read from a 1336 PLUS drive, as
defined in word 2 of the request. Parameter numbers 5, 7, 8, 20, 18, 17,
19, and 36 were requested. The drive response returned the values of
these parameters in the data file. These values are in drive units.
Data File Format
* Example only — These values vary depending on parameters and products.
Scattered Parameter Value Write writes to a scattered list of
parameters and returns the status of each parameter. If any of the states
have errors, the parameter number is negative.
0
1
2
3
4
5
6
7
8
9
PLC request
19
3
8*
5*
0
7*
0
8*
0
20*
0
18*
0*
17*
0
19*
0
36*
0
Drive response
19
3
8*
5*
6*
7*
1000* 8*
1000* 20*
4096* 18*
4096* 17*
51*
19*
60*
36*
6144*
Scattered Parameter Value Write