hopf 8024GPS, Техническое руководство

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hopf
Elektronik GmbH
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• D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: info@hopf.com
3.6.4.5.6.11.4 Initialization String for IEC-103 (ASDU Type 6)
This initialization string is sent with ascending IEC address every second unless the minute
change. The IEC address is continuously repeated from 1 to a selectable value of maximal
254 ($01-$FE). Setting up the IEC address is done via S6 and S5.
Disable the initialization string:
•
Setting S6 and S5
Settings for Initialization String IEC-103
To be set with special settings S6 and S5:
B7 B6 B5 B4 B3 B2 B1 B0 DEZ HEX Notes to S6 & S5
0 0 0 0 0 0 0 0 0 $00 S6=1, S5=1 (deactivated)
0 0 0 0 0 0 0 1 1 $01
: : : : : : : : :
0 0 1 1 1 1 0 1 63 $3F S6=1, S5=0
: : : : : : : : :
0 1 1 1 1 1 1 1 127 $7F S6=0, S5=1
: : : : : : : : :
1 1 1 1 1 1 0 1 253 $FD
1 1 1 1 1 1 1 0 254 $FE S6=0, S5=0 (max value)
Structure IEC-103
Character no. Meaning Hex Value
1 Start flag 10
2 Control field 47
3 IEC-Address $01-$FE
4 Checksum (sum of fields 2 & 3 mod 256) $00-$FF
5 End flag 16
Example
The length of data string consists of 5 characters. Just binary values are sent.
The hexadecimal values of the transmitted characters are stated:
<10><47> <01> <48><<16> (String initializes unit with the address 01)
<10><47> <02> <49><<16>
:
<10><47> <0F> <56><<16>
<10><47> <10> <57><<16>
:
<10><47> <FE> <45><<16> (String with maximal valid address)