Configuration
3.4 Other options when configuring a CP 243-1
Byte offset in
Description
variable memory
13-14
Common flag
•
•
•
•
•
•
•
15-18
Configured IP address
This field should be set to
16#00000000 when BOOTP/DHCP is
being used.
19-22
Configured subnet mask
This field should be set to
16#00000000 when BOOTP/DHCP is
being used
23-26
IP address of the gateway.
16#00000000 means: do not use a
gateway.
This field should be set to
16#00000000 when BOOTP/DHCP is
being used.
27-28
Keepalive time parameter in
seconds
S7 connection 0 section (If some bytes of this section are unused, pad them with16#00)
68
Bit [0] duplex mode
–
0: half duplex
–
1: full duplex
Bit [1] data rate
–
0: 10 Mbps
–
1: 100 Mbps
Bit [2] Autonegotiation
–
0: No autonegotiation
–
1: Autonegotiation
Bit [3] aut. address assignment
–
0: use configured network
parameters
–
1: BOOTP/DHCP
Bit [4] protocol
–
0: BOOTP
–
1: DHCP
Bit [5-7] not used
Bit [8-15] CRC validation
–
16#00 CRC check enabled
–
16#AC CRC check disabled
Data format
2 bytes, hex
4 bytes, hex
4 bytes, hex
4 bytes, hex
2 bytes, hex
Operating Instructions, 03/2012, C79000-G8976-C244-02
Example
16#0004:
Autonegotiation,
use configured network
parameters,
CRC check enabled
16#AC04:
Autonegotiation,
use configured network
parameters,
CRC check enabled
192.12.45.23:
16#C00C2D17
255.255.255.0:
16#FFFFFF00
192.12.45.24:
16#C00C2D18
16#001E:
30 seconds
CP 243-1