Communications services
3.1 Overview of communication options
Communication
26
Function Manual, 05/2021, A5E03735815-AJ
Communications options
Functionality
Via interface:
PN/IE
1
DP
serial
Open communication via ISO (only CPs
with PROFINET/Industrial Ethernet inter-
face)
Data exchange via PROFINET/Industrial Ethernet with
the ISO protocol
Instructions:
•
TSEND_C/TRCV_C
•
TSEND/TRCV
•
TCON
•
T_DISCON
X
-
-
Open communication with FDL (only
CM 1542-5 as of firmware V2.0)
Data exchange via PROFIBUS with the FDL protocol
Instructions:
•
TSEND_C/TRCV_C
•
TSEND/TRCV
•
TUSEND/TURCV
•
TCON
•
T_DISCON
-
X
-
OPC UA server
3
Data exchange with OPC UA clients
X
-
-
Communication via Modbus TCP
Data exchange via PROFINET with Modbus TCP pro-
tocol
Instructions:
•
MB_CLIENT
•
MB_SERVER
X
-
-
Sending process alarms via e-mail
Instruction:
•
TMAIL_C
X
-
-
FTP (only CPs with
PROFINET/Industrial Ethernet interface)
File management and file access via FTP (File Trans-
fer Protocol); CP can be FTP client and FTP server
Instruction:
•
FTP_CMD
X
-
-
Fetch/Write (only CPs with
PROFINET/Industrial Ethernet interface)
Server services via TCP/IP, ISO-on-TCP and ISO
Via special instructions for Fetch/Write
X
-
-
S7 communication
Data exchange via PROFINET/PROFIBUS with the
S7 protocol.
Instructions:
•
PUT/GET
•
BSEND/BRCV
•
USEND/URCV
X
X
-
Serial point-to-point connection
Data exchange via point-to-point with Freeport,
3964(R), USS or Modbus protocol
Via special instructions for PtP, USS or Modbus RTU
-
-
X
Web server
Data exchange via HTTP(S), for example for diagnos-
tics
X
-
-
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