Siemens SIPROTEC 7SJ62 Instruction Manual page 136

Configuration
Other Interfaces
5-42
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Figure 5-44 DIGSI 4, Settings for the PC Port on device
For the IEC communication, each SIPROTEC
dress assigned to it. There is a total of 254 IEC addresses available. Select an address
from the pull-down menu $GGUHVV. Only the addresses which are within the current
address range and have not yet been issued are displayed.
The setting for the maximum telegram gap is only applicable when the device is to
communicate using a modem via service port. A gap is the maximum allowable time
duration of interrupted transmission within one telegram transmission. Transfer gaps
are created when using modems with data compression, error correction, and baud
rate differences. For good data transmission between modems, a setting of  sec
is recommended. For poor connections, this value should be increased.
Large values slow down communications in case of errors. When using a direct PC
connection, 0D[ PHVVDJH JDSV may be set to  sec.
Note:
Do not use front port for modem communication!
Enter specific settings and addresses to identify devices in the other tabs, or check the
preset values.
Device addresses are used by the system to identify each device and must be unique
throughout the system. Detailed instructions for setting the interfaces are available in
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the "DIGSI 4 Communications" manual.
If the user desires to expand or modify interfaces later, refer to the modification instruc-
tions for the interfaces, and if necessary for the hardware, see also instructions in Sec-
tion 8.1.3 of this document.
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device must have a unique IEC ad-
C53000-G1140-C121-1
7SJ62 Manual