Siemens CP 243-1 Operating Instructions Manual page 106

Diagnostics
5.1 Diagnostic options
Byte offset in the SM area
0-15
16-19
20-21
22
23
24
Addressing global errors and module information
● Reading the NPB memory area:
106
Meaning
Module type
Software version
Error code (see chapter Error
messages of the CP 243-1
(Page 108)).
Status of the CP 243-1
Bit [0]
0: CP 243-1 not starting up
1:CP 243-1 starting up
Bit [1]
0: BOOTP/DHCP sequence not
performed
1: BOOTP/DHCP sequence being
performed
Bit [2]
0: CP 243-1 not ready
1: CP 243-1 ready for operation
Bit [3]
0: STEP 7 Micro/WIN 32 inactive
1: STEP 7 Micro/WIN 32 active
Bit [4]
0: Configuration according to CDB
1: No valid configuration in CDB
Bit [5] reserved
Bit [6]
0: No Ethernet connection
1: CP 243-1 connected to Ethernet
Bit [7]
0: No error on CP 243-1
1: CP 243-1 in error status
Reserved
Hardware version
A pointer to the memory area in which the configuration data of the CP 243-1 is stored is
located in bytes 46 to 49 of the SM area currently being used for the CP 243-1. If you
increase this pointer by 108, you will find the NPB memory area in which the TCP/IP
configuration parameters currently being used by the CP 243-1 are stored (provided the
CP 243-1 was configured correctly and has completed at least one cycle of the user
program). If the configuration is not correct, the values of the NPB are not valid. The
following table shows the layout of this memory area.
Format
16 bytes ASCII
4 bytes
ASCII
2 bytes, hex
1 byte, hex
1 byte
ASCII
Operating Instructions, 03/2012, C79000-G8976-C244-02
CP 243-1