SOMMER SPA-2, Руководство пользователя

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Value range Default Unit
0 ... 20 2 sec
F-H-M Transparency to RS485-2
Only available in terminal mode. After activation, direct communication with a connected sensor is
enabled, i.e. commands and theirs answers are exchanged over the RS485-2 interface of the SPA-2.
With this mode the settings of a connected digital sensor can be read or changed.
F-I RS-485-1 Protocol
The RS-485-1 interface is used to read acquired data and to configure the SPA-2. The following para-
meters are available to configure the protocol; the port settings are defined in
RS-485-1 Port .
F-I-A Device number 104
F-I-B System key 104
F-I-C Output protocol (OP) 105
F-I-D OP, measurement output 105
F-I-E OP, information 105
F-I-F OP, wake-up sequence 106
F-I-G OP, prefix holdback 106
F-I-H MODBUS, set default 106
F-I-I MODBUS, device address 106
F-I-A Device number
The device number is used for the unique identification of the device in a bus system.
Value range 0…98 0 (default)
F-I-B System key
The system key defines the bus system of the device. Thus, different conceptual bus systems can
be separated. Interfering bus systems occur if the remote radio coverage of two measurement sys-
tems overlap. In general, the system key should be set to 00.
Value range 0…99 0 (default)
12
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104 Manual