ADF Web HD67626-A1, User Manual

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User Manual S7comm / SNMP Agent
Document code: MN67626_ENG Revision 1.000 Page 17 of 27
Figure 4a: “S7 Protocol Access  S7comm Read” window
S7comm ACCESS:
By Pressing the “
S7comm Access ” button from the main window of SW67626 (Fig. 2), the window “Set S7comm Access” appears (Fig. 4).
The window is divided in two parts, the “ S7comm Read ” that contains the data that the converter reads from the S7comm servers and
“ S7comm Write ” that contains the data that the converter writes into the S7comm servers.
The means of the fields in the window “S7comm Read” are the following:
In the field “ PLC Address ” the IP address of the PLC that contains the data to be read is defined;
In the field “ PLC Port ” the port used for S7comm communication is defined;
In the field “ PLC Type ” the family of the PLC is defined;
In the field “ Rack ” the Rack’s ID of the PLC is defined;
In the field “ Slot ” the Slot’s ID is defined;
In the field “ Data Type ” the data format of the variable to read is defined;
In the field “ Data Identifier ” the identifier of the variable to read is defined;
In the field “ PLC Area ” the memory area where the data is located inside the PLC is defined;
In the field “ PLC Add ” the starting memory address where the data is located is defined;
In the field “ PLC Bit ” the starting bit of the selected PLC Address is defined;
In the field “ Poll Time ” the frequency of the request is defined (in ms);
In the field “ Position ” the starting byte of the internal memory array from which mapping the data read is defined;