EN
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110
13 IFR-800 fieldbus connection tool
iROB
®
501 PRO
Modbus-TCP
13.3 Processing time for communication data
If an external device changes a single function via the I/O data, it takes approximately 20 ms for the change
to be registered by the welding power source after the data has been received by the welding power source.
If changes are made to two or more functions, it takes a maximum of approximately 50 ms for all changes
to be registered. (*1, *2)
When the welding power source sends I/O data, the status of the welding power source approximately
20 ms before the send time is used in the data (communication cycle waiting time (*3) (*1)).
*1 The delay may be longer at times depending on the CPU load conditions of the welding power source.
*2 When a hardware function is performed in the welding start mode and gas discharge mode, etc., an
additional delay occurs because of the time until the hardware starts the operation.
*3 For example, when the communication interval of I/O data is set to 10 ms, the communication cycle
waiting time is 0 to 10 ms.
Tab. 52
Modbus-TCP basic properties
Communication standard
Modbus-TCP
Bandwidth
10/100 MBit/s
Connector
IEC 61076-2-101, M12, 4-pole, D-coded, socket
IP address
Default setting: 192.168.0.2
The IP address can be changed by means of a workstation
computer and corresponding software via the Ethernet interface.
Connection
Only I/O connection supported, operation as target
Communication cycle
Recommended: 5 to 200 ms
Target parameter from source
Instance ID: 150
Data scope: 32 bytes
Active/idle header: yes
Source parameter from target
Instance ID: 100
Data scope: 32 bytes
Active/idle header: no
Manufacturer ID
In accordance with information from Anybus Communicator
AB7072 manufactured by HMS
Manufacturer ID: 005Ah
Fig. 56
Modbus-TCP pin assignment
A
Pin 1 = +TX
B
Pin 2 = +RX
C
Pin 3 = −TX
D
Pin 4 = −RX
Housing = shielding
D
C
B
A
