Communication
11.2 PROFINET
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
905
Each subfield consists of a header (subfield_type_id, subfield_length, subfield_mode) and
the subfield-specific parameters. Each subfield must consist of an even number of bytes.
The subfield_mode can support a value of 1 or 2. Please refer to the tables below.
Note
Only one field (IF_CONF_Header) is currently allowed. Its parameters field_type_id and
field_id must
have the value zero. Other fields with different values for field_type_id and
field_id are subject to future extensions.
Table 11- 45 Subfields supported
IP parameters: IP address, subnet mask, router address
PROFINET IO device name (Name of station)
Network Time Protocol (NTP)
Table 11- 46 Elements of the IF_CONF_V4 data type
subfield_mode (1: permanent or 2: temporary)
- Interface address
IP address high byte: 200
- Subnet mask
Subnet mask high byte: 255
ADDR[2] Byte 0 Subnet mask high byte: 255
Subnet mask low byte: 255
ADDR[4] Byte 0 Subnet mask low byte: 0
- Default router