User's Manual

RTM Elster AMCO applicative PFS Coronis Systems
4.2.Internal parameters access
This chapter details the applicative data field used for reading or writing RTM Elster AMCO internal
parameters.
The complete list of accessible parameters is described in Appendix A at the end of this document.
Commands to use for accessing RTM Elster AMCO internal parameters :
Applicative
Commands
Description
0x18
Request to read parameter(s)
0x98
Request to read parameter(s) acknowledgment
0x19
Request to write parameter(s)
0x99
Request to write parameter(s) Acknowledgment
It is possible to access up to 10 parameters simultaneously either in writing or reading access
4.2.1.Reading internal parameters
 Reading request data format
Applicative
command
Number of
param to read
1
st
param ID 1
st
param size ... ... n
nd
param ID n
nd
param size
0x18
1 byte 1 byte 1 byte ... ... 1 byte 1 byte
n
max
= 10
 Reading acknowledgment data format
Applicative
acknowledgment
command
Operating
Mode
(1)
Number of
param
read
1
st
param
ID
1
st
param
size
1
st
param
value
...
n
th
param
ID
n
th
param
size
n
th
param
value
0x98
2 bytes 1 byte 1 byte 1 byte variable ... 1 byte 1 byte variable
(1) Operating mode is systematically sent in the reading parameter request acknowledgment frame.
Remark :When a parameter is not a valid parameter of RTM Elster AMCO, or the size is configured with a
wrong value, the corresponding field “size” is set to “0x00” in the response frame and the corresponding
parameter value is not significant in this case.
EVO RTM-UserMan 14