03/03
Diagnosis
CP 243-1 IT
J31069-D0429-U001-A0-7618
109
•
Reading the NPB memory area
A pointer to the memory area in which the configuration data of the CP 243-1 IT
are stored is located in bytes 46 to 49 of the SM area currently used for the CP
243-1 IT. If you increase this pointer by 108, you will find the NPB memory area
in which the TCP/IP configuration parameters currently used by the CP 243-1 IT
are stored (provided the CP 243-1 IT was configured correctly and has com-
pleted 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 indicates the layout of
this memory area.
Byte Offset in
Variable Mem-
ory
Meaning
Format
108 - 109
Common flag byte
Bit [0] Duplex mode
0: Half
duplex
1: Full
duplex
Bit [1] Data rate
0: 10
Mbit/sec
1: 100
Mbit/sec
Bit [2] Auto negotiation
0:
Auto negotiation not active
1:
Auto negotiation active
Bit [3] BOOTP
0:
Network parameters from configuration
1:
Network parameters from BOOTP
Bit [4] - Bit [15]: Reserved
2 bytes, hex
110-113
Current IP address
4 bytes, hex
114- 117
Current subnet mask
4 bytes, hex
118-121
IP address of the currently used gateway
4 bytes, hex
122-127
MAC address
6 bytes, hex
Table 28
Layout of the NPB memory area
•
LED indicators (see chapter 2.8)
•
Test e-mail
The CP 243-1 IT can send a test e-mail with an HTML page which is called from
a Web browser. This routine makes it very easy to determine whether a desired
e-mail server or e-mail receiver can be reached from the CP 243-1 IT. The user
name and the password of the administrator must be specified before this test
e-mail routine can be triggered. The error messages which can occur while a
test e-mail is being sent are discussed in chapter 6.3.
Содержание CP 243-1 IT
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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 ...