Why do voltage and current registers return implausible or zero values?

The DS100 encodes all values as signed 32-bit big-endian integers with implicit decimal scaling. Voltage and current registers use a multiplier documented in the manual (commonly millivolts or milliamps). If your Modbus master reads them as 16-bit or applies float decoding, values will appear wrong. Confirm your client reads two consecutive 16-bit registers and treats the result as Int32 big-endian.

The energy register value seems far too large. What is wrong?

The cumulative energy register at address 270 is delivered in hundredths of kWh (Int32 format with two implied decimal places). A raw value of 374 represents 3.74 kWh. Apply a scaling divisor of 100 in your portal channel configuration to display the correct kWh figure.

The Gateway connects but no register data appears. What should I check?

Verify that the slave address set on the DS100 front panel matches the unit ID entered in the portal. Also confirm baud rate, parity, and stop-bit settings match on both sides. On the RS485 bus, check that A and B lines are not swapped and that termination resistors are fitted if the DS100 is at a bus endpoint.

Can I use multiple DS100 meters on the same RS485 bus?

Yes, but each meter must have a unique slave address (configured via the front-panel menu). All meters on the bus must share identical baud rate and framing settings. The ModbusCloud Gateway polls each unit ID in sequence, so keep the total bus length within the RS485 specification and avoid duplicate addresses, which will cause collisions and missing data.

Free Modbus template: B+GE-TECH DS100 (charge)

Name: B+GE-TECH DS100 (charge)
Brand: B+GE-TECH
SKU: fd986eab-640d-4370-a29c-aa3b4fcd944e

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Free Modbus template: B+GE-TECH DS100 (charge) | ModbusCloud

Registers (11)

11 read / 0 write

Name	Address	Function	Type	Unit	Access
power Total three-phase active power, signed, in watts.	1056	FC03	int32	W	R
energy Cumulative imported (charge) energy, in hundredths of kWh.	270	FC03	int32	kWh	R
currents_a Phase A (L1) current, signed 32-bit integer.	1040	FC03	int32	A	R
currents_b Phase B (L2) current, signed 32-bit integer.	1042	FC03	int32	A	R
currents_c Phase C (L3) current, signed 32-bit integer.	1044	FC03	int32	A	R
voltages_a Phase A (L1) voltage, signed 32-bit integer.	1024	FC03	int32	V	R
voltages_b Phase B (L2) voltage, signed 32-bit integer.	1026	FC03	int32	V	R
voltages_c Phase C (L3) voltage, signed 32-bit integer.	1028	FC03	int32	V	R
powers_a Phase A (L1) active power, signed, in watts.	1050	FC03	int32	W	R
powers_b Phase B (L2) active power, signed, in watts.	1052	FC03	int32	W	R
powers_c Phase C (L3) active power, signed, in watts.	1054	FC03	int32	W	R