I see zero or incorrect values for all registers. What should I check?

Verify the IP address and Modbus unit ID match the settings on the PAC 2200. Also confirm that Modbus TCP is enabled on the meter and that no firewall is blocking port 502.

Do I need to configure float32 byte order manually?

No. The template is preconfigured with the correct float32 register mapping for the PAC 2200. Each value spans two consecutive registers, and the template handles the byte order automatically.

The template does not include all PAC 2200 registers. Can I add more?

Yes. You can extend the template by adding custom registers using the PAC 2200 Modbus register documentation from Siemens. Use float32 as the data type for additional registers.

Can I connect multiple PAC 2200 meters to one ModbusCloud gateway?

Yes. Assign each PAC 2200 a unique IP address or unique Modbus unit ID, then add each meter as a separate device in the ModbusCloud platform using the same template.

Free Modbus template: Siemens Sentron PAC 2200

Name: Siemens Sentron PAC 2200
Brand: Siemens
SKU: c0bb2f2c-d0e7-42af-963d-2ebcf39d1ca8

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Free Modbus template: Siemens Sentron PAC 2200 | ModbusCloud

Registers (18)

18 read / 0 write

Name	Address	Function	Type	Unit	Access
Voltage L1-N	1	FC03	float32	V	R
Voltage L2-N	3	FC03	float32	V	R
Voltage L3-N	5	FC03	float32	V	R
Voltage L1-L2	7	FC03	float32	V	R
Voltage L2-L3	9	FC03	float32	V	R
Voltage L3-L1	11	FC03	float32	V	R
Current L1	13	FC03	float32	A	R
Current L2	15	FC03	float32	A	R
Current L3	17	FC03	float32	A	R
Apparent Power L1	19	FC03	float32	VA	R
Apparent Power L2	21	FC03	float32	VA	R
Apparent Power L3	23	FC03	float32	VA	R
Active Power L1	25	FC03	float32	W	R
Active Power L2	27	FC03	float32	W	R
Active Power L3	29	FC03	float32	W	R
Total Apparent Power	47	FC03	float32	VA	R
Total Active Power	65	FC03	float32	W	R
Total Reactive Power	51	FC03	float32	var	R

Siemens Sentron PAC 2200

Overview

Key readings

Use cases

Installation

Things to watch for

Registers (18)

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