How to perform the communication between GMP and GMM?

Modified on Mon, 17 Jun at 11:48 AM

Gif da Logo da Treetech formando um ponto de interrogação

In this guide, you will know, step by step, how to configure GMM-MMI to communicate with GMP. 

Before starting the procedure, you need to check what firmware version your GMM has and identify if that version is compatible with GMP. 

ℹ️ If you have questions about the firmware version compatibility between GMP and GMM, please refer to the following link: https://sac.treetech.com.br/en/support/solutions/articles/69000795220-what-is-the-gmm-and-how-it-is-related-to-gmp-

Parameterization spreadsheets

GMM:

At the link below, you will have access to all the available parameters for GMM: 

GMP:

At the link below, you will have access to all the parameters available for GMP:


Communication:

To perform communication, it is necessary to connect the GMP to the GMM-MMI, as shown in the image below:

Connecting the communication terminals:

  • GMP 3(+) → GMM 16(+);
  • GMP 4(-) → GMM 17(-).


Once the connection has been checked, the address must be parameterized directly in GMP. The firmware version of the device must be taken into account for successful programming.

Firmware VersionCommunication Address
1.171
2.00247
From version 3.xx247

After this step, check the firmware version of the GMM. If it is version 4.00 or older, no further configuration is required. If it is version 4.20 onwards, set the following parameter:

MODGV1GMP1 with firmware v1.17
GV2GMP2 with firmware v.2.00
GV3GMP2 with firmware v.3.xx

After finishing the parameterization, the IEDs should already be communicating with each other.

VariableQuery screens
Modbus protocolDNP protocol
H2 concentration evolution trendYESYES
YES
H2O content evolution trendYESYES
YES
Oil temperatureYES
YES
YES
Internal temperature 1NOYES
YES
H2 concentrationYES
YES
YES
H2O contentYES
YES
YES
Relative saturationYES
YES
YES


For more detailed information on the GMM-MMI, access the manufacturer's manual available at the following link: 


If you have any problems or difficulties with the procedure, please do not hesitate to contact us! 

Contacts:  
Telephone: +55 (11) 2410 – 1190 — Ext: 425
Mobile: +55 (11) 97225 – 8683 - WhatsApp
Email: sac@treetech.com.br
Customer Service Portal

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