03/03
Configuration
CP 243-1 IT
J31069-D0429-U001-A0-7618
57
4.2
Value Ranges of the Configuration Data
4.2.1 IP
Addresses
The IP addresses which must be specified at various points in the configuration
must comply with the general conventions governing the validity of IP addresses.
According to this convention, the following IP addresses have a special signifi-
cance.
•
Loopback:
127.0.0.0 - 127.255.255.255
•
Class D addresses:
224.0.0.0 - 239.255.255.255
•
Class E addresses:
240.0.0.0 - 247.255.255.255
•
Broadcast addresses:
Example: 255.255.255.255
The CP 243-1 IT does not accept these addresses. The only exception is the loop-
back address 127.0.0.1 which can be used during configuration of the FTP client
service. This causes data to be transferred between the memory of the local S7-
200 CPU and the file system of the local CP 243-1 IT when the appropriate func-
tion is called.
4.2.2 Subnet
Mask
If a subnet mask is specified in the configuration, its layout must comply with the
general conventions governing the validity of subnet masks.
Remember that the validity of an IP address and a related subnet mask are de-
pendent on each other.
4.2.3 TSAPs
TSAPs consist of 2 bytes. The first byte specifies the connection. The second byte
is created from the rack number and the slot of the communications module. The
following value ranges apply to the first byte.
•
Value range, local TSAP:
16#02, 16#10 - 16#FE
•
Value range, remote TSAP:
16#02, 16#03, 16#10 - 16#FE
The CP 243-1 IT does not check the layout of the second byte.
Содержание CP 243-1 IT
Страница 46: ...Installation and Commissioning 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 46 ...
Страница 94: ...Programming 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 94 ...
Страница 106: ...Diagnosis 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 106 ...
Страница 120: ...Technical Data 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 120 ...
Страница 130: ...Example 03 03 CP 243 1 IT J31069 D0429 U001 A0 7618 130 ...