Festo EMCA-EC-67 CO Series, Description

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5 Modbus TCP with FHPP
94 Festo – EMCA-EC-C-HP-EN – 2017-11e – English
5.3 Configure Modbus master
5.3.1 IP address
The IP address of the EMCA as a Modbus TCP subscriber is identical to the IP address set in the FCT or
web server.
5.3.2 Function element
The following function elements can be used to enable the EMCA.
Typ Description
Festo_Motion_FHPP_2.library Beckhoff TwinCAT 2
CODESYS, Version 2.3
Festo_Motion_FHPP_3.library Beckhoff TwinCAT 3
CODESYS, Version 3.5
Festo_Motion_FHPP.slr Omron Sysmac Studio
FestoMotionFHPP_V14.al14 Siemens Steuerung
Tab. 5.4 Function elements for FHPP
The latest version of the function elements
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www.festo.com/sp
5.3.3 Cycle time
Data are processed by the EMCA in a cycle time of up to 5 ms.
5.3.4 Modbus command and address assignment
The following Modbus commands are available for processing process/device/error data:
Modbus commands Function code Page
Process Data
1)
Read process data (Read holding registers) 0x03 96
Write process data (Write multiple registers) 0x10 97
Read/write process data (Read/write multiple registers) 0x17 98
Error data
Read exception status (Read exception status) 0x07 99
Device data
Read device identification (Read device identification) 0x2B 100
1) Function code 0x17 is recommended for the reading and writing of process data. If this is not available on the control side, Function
codes 0x03 and 0x10 must be used.
Tab. 5.5 Overview of Modbus commands