Modbus Map - Siemens US2:9810T24V User Manual

9810 series - User manual
* IRIG-B can only be connected to one of the digital inputs located on the meter base, not an
option module. Unmapped (unused) registers are registers that will never be used by the meter,
and therefore have no defined format. Reserved registers have a defined format and are intended
for use by the meter, its options, or its variants.
Modbus invalid write registers response
If the meter receives a write command to a Modbus register address that does not have a register
mapped, the meter will not respond. No data is written or stored, and the meter will not send back
a rejection to the request.
If the meter receives a write command to a read-only Modbus register address, exception code 03
(illegal value) is returned.
Fixed and configurable Modbus map
Your meter has a fixed (static) register map for meter data and a flexible, user-configured register
map.
Modbus security
Your meter's onboard security options include Modbus-specific settings. These security settings
may need to be configured to write Modbus data to the meter.

Modbus map

Your meter's default Modbus register information (map) is available on
www.usa.siemens.com/pds.
The Modbus register information includes:
• Registers and mapped values
• Formats and scaling
• Additional details where applicable
NOTE: Your meter's Modbus registers are specified differently than previous devices using ION
architecture. If you are configuring Modbus client information on your meter, confirm you are
using the appropriate Modbus register addressing. For more information, refer to your meter's
Modbus map.
Your meter has a fixed (static) register map which contains the most common metering values.
This map is defined by a series of Data Mapping modules, which also determine the values shown
on the meter webpages or the display. The Data Mapping modules are named based on the type
of information they map to Modbus:
Data Mapping module
Data Mapping Dmd
7EN05-0390-08
Description
Maps kW, kVA and kVAR demand data such as kW sd
del (sliding demand kilowatts delivered), as well as
current demand such as I a sd (sliding demand phase A
current).
Communications
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