Hello,

I want to read PAC3120 active energy history with XWORKS+  and PXC001. In PAC3120 these values start at register address 32001.

However, there is a note in a manual (PAC3120 and PAC3220 Equipment Manual, 07/2024, page 148) that

Modbus queries for "Work portion Tariff 1" or "Work portion Tariff 2" must always be performed as a whole in a package (TS, Work portion T1, Work portion T2) with the start address at TS (e.g. 32003, 32009, 32015).

Although there are listed addresses for MODBUS function codes 3 and 4, I can not read these registers because I cannot read more than one register (and I got an error).

Is there any way (syntax) to read this using XWORKS+  and PXC001?

Is there a way to read them using ABT and e.g. PXC5?

Moreover, I have found in documentation for S7-1200 (Overview of Modbus RTU and Modbus TCP communication) and for S7-1500 (SIMATIC S7-1500 / ET 200MP / ET 200SP – CM PtP - Configurations for point-to-point connections, s71500_cm_ptp_function_manual_en-US_en-US.pdf, page 61) that only the basic function codes (01-06, 15 and 16) are supported, but not the function code 20 (0x14) Read File Record, which is required (by PAC manual) to read those values.

What this means - neither BT nor Industrial Siemens controllers do not support reading Siemens PAC3120?!

Hi,

Sounds like crap...

CJ.

Hi,

I'm not sure if this will be of any use to you, but have you tried reading the active energy imports for the 2x tariffs? These are either holding or input registers starting at 801 and 805 respectively (Page 116 of the meter manual)? They are 64bit registers, and the values are in Wh.

You can create software in the PX to accumulate these values over the course of a day / week / month etc, and then trend the resulting values. There are examples available that will give you consumption values for 'this week / last week', 'this month / last month' etc.

Regards,

Hi CJ,

Yes, I have already made something like that and it was not so hard; I even trended that values. Anyway, I wish I could use PAC features.