Communication
SIMOCODE pro
12-6 GWA 4NEB 631 6050-22 DS 03
12.4 Telegram description and data access
12.4.1 Cyclic data
Cyclic data is exchanged between the PROFIBUS DP master and the DP
slave once every DP cycle. The PROFIBUS DP master module then sends
the receive data to SIMOCODE pro.
In response, SIMOCODE pro sends the send data to the master module.
Cyclic data is accessed via the inputs (send data) and outputs (receive data)
in the PLC program.
The length of the cyclic data which is to be transferred is already set when
SIMOCODE pro is integrated into the DP master system. This is achieved by
selecting the basic type which in turn determines the structure and the
length of the cyclic data.
The following basic types are available:
• Cyclic data from the PROFIBUS DP master to SIMOCODE pro:
Table 12-1: Cyclic data from the PROFIBUS DP master to SIMOCODE pro
• Cyclic data from SIMOCODE pro to the PROFIBUS DP master:
Table 12-2: Cyclic data from SIMOCODE pro to the PROFIBUS DP master
The cyclic data contents (digital/analog information) is set by
parameterization, e.g. with the "SIMOCODE ES" software.
The cyclic I/O data is already preset when the type of application (control
functions) is selected when the "SIMOCODE ES" parameterization
software is started (see Chapter B.21 "Assignment of cyclic receive and
send data for predefined control functions").
Designation Length Designation Infor-
mation
Basic type 1 4 bytes of receive data Cyclic Receive -
Bit 0.0 to 1.7
BU2
Cyclic Receive -
Analog value
Basic type 2 2 bytes of receive data Cyclic Receive -
Bit 0.0 to 1.7
BU1
BU2
PROFIsafe 5 bytes of receive data 1 bit user data, assigned
permanently to the relay
enabling circuits
BU2
Designation Length Designation Infor-
mation
Basic type 1 10 bytes send data Cyclic Send -
Bit 0.0 to 1.7
BU2
Cyclic Send -
Analog inputs 1 to 4
Basic type 2 4 bytes send data Cyclic Send -
Bit 0.0 to 1.7
BU1
BU2
Cyclic Send -
Analog Input 1
PROFIsafe 4 byte inputs No user data BU2
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