Modbus Registers (Sicharge To Elms) - Siemens SICHARGE D Operating Instructions Manual

Description
2.6 Modbus registers (SICHARGE to ELMS)
EVSE active power limit setpoint (G_PowerLimit)
Main power limit setpoint for SICHARGE in cases where the ELMS feature is active (ELMS_LLA =
true) and no communication loss is detected between SICHARGE and ELMS.
Measured average EVSE active power (EMA_Power)
Measures the average active power consumed by SICHARGE on an external energy meter
installed at the ELMS end.
Fallback power limit setpoint (G_FallbackPLim)
Fallback power limit setpoint for SICHARGE in cases where a communication loss is detected
between SICHARGE and ELMS.
2.6

Modbus registers (SICHARGE to ELMS)

SICHARGE has all Modbus registers as Holding registers. Floating point values are transmitted as
integers after applying a scaling factor to shift decimal places. These registers can be written by
ELMS via Modbus TCP Communication. Mappings are shown in table below.
Name
Interface Status and Errors
Status Word 1
Error Word 1
Mains Power parameters
Min EVSE Power (G_Power_Min)
Max EVSE Power (G_Power_Max)
Actual Average EVSE Active Power (G_APower_Actual)
EVSE Active Power Limit (G_Power_Limit_active)
Actual voltage L1 Line-Neutral (U_L1N)
Actual voltage L2 Line-Neutral (U_L2N)
Actual voltage L3 Line-Neutral (U_L3N)
Actual power factor L1 Line (COS_PHI_L1)
Actual power factor L2 Line (COS_PHI_L2)
Actual power factor L3 Line (COS_PHI_L3)
**Actual average EVSE apparent power (G_SPower_Actual)
AC1 Outlet status and measurements
PilotState
Actual output current L1 Line (I_L1_AC1)
Actual output current L2 Line (I_L2_AC1)
Actual output current L3 Line (I_L3_AC1)
Actual average active Output Power (P_AC1)
DC1 outlet status and measurements
16
Addr Type Factor
10 word -
11 word -
15 uint 100
16 uint 100
17 uint 100
18 uint 100
19 uint 100
20 uint 100
21 uint 100
22 uint 10000
23 uint 10000
24 uint 10000
25 uint 100
30 uint -
31 uint 100
32 uint 100
33 uint 100
34 uint 100
External Load Management System
Operating Manual, 07/2022, A5E52045935-AA
Units
-
-
kW
kW
kW
kW
V
V
V
-
-
-
kVA
-
A
A
A
kW