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Recorder and must be used in conjunction with the User Guide Modbus serial link. All connections other than those used for (part no. IM/SM3000) supplied with the instrument. serial communication are shown in Section 5 of the User Guide. 2.1 Host Computer Serial Communications Information.
2 ELECTRICAL INSTALLATION 2.3 Pull-up and Pull-down Resistors – Fig. 2.1 To prevent false triggering of slaves when the master (host computer) is inactive, pull-up and pull-down resistors must be fitted to the RS422/485 interface in the host computer. Resistors are normally connected to the interface by means of hard-wired links or switches – refer to the manufacturer's instructions. 2.4 Termination Resistor –...
3 CONFIGURATION 3.1 Configuring Serial Communications 1) Access the Configuration Level as detailed in Section 4.1.2 of the User Guide (IM/SM3000) 2) Configure the instrument as described below: Set according to the number of transmission wires connected to the instrument: 4-wire, 2-wire.
4 MODBUS PROTOCOL 4.1 Modbus Commands Supported 4.2 Modbus Exception Responses The following Modbus commands are supported: If the instrument detects one of the errors listed in Table 4.1 while receiving a message from the host system, it replies with a 01 Read Coil Status –...
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…5 OPERATING MODE …5.1 Operating Mode Modbus Coils r a l i t c r a l i t c r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l...
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5 OPERATING MODE… …5.1 Operating Mode Modbus Coils r a l i t c r a l i t c r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l...
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…5 OPERATING MODE …5.1 Operating Mode Modbus Coils r a l i t c e f f r a l i t c r a l r a l r a l r a l r a l r a l r a l r a l r a l...
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5 OPERATING MODE… …5.1 Operating Mode Modbus Coils r a l i t c e f f r a l i t c r a l r a l r a l r a l r a l r a l r a l r a l r a l...
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…5 OPERATING MODE …5.1 Operating Mode Modbus Coils e f f i t c Table 5.4 Operator Messages i t c i t c Table 5.5 Digital I/O States...
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5 OPERATING MODE… …5.1 Operating Mode Modbus Coils z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.1 Operating Mode Modbus Coils > e f f < z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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5 OPERATING MODE… …5.1 Operating Mode Modbus Coils i t c i t c z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.1 Operating Mode Modbus Coils i t c i t c z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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5 OPERATING MODE… …5.1 Operating Mode Modbus Coils e l i z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.1 Operating Mode Modbus Coils u l i r a l r a l r a l r a l r a l r a l r a l r a l z i l z i l z i l z i l z i l...
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5 OPERATING MODE… …5.1 Operating Mode Modbus Coils u l i r a l r a l r a l r a l r a l r a l r a l r a l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.1 Operating Mode Modbus Coils u l i r a l r a l r a l r a l r a l r a l r a l r a l z i l z i l z i l z i l z i l...
5 OPERATING MODE… 5.2 Operating Mode Modbus Registers Tables 5.12 to 5.23 detail the contents of the Modbus registers , y l accessible while the instrument is in the operating mode. o l f n i t t n i Two data types are used: •...
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers – t i r – r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l...
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers – t i r – r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l r a l...
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers o l f n i t – z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers o l f n i t – z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers o l f n i t – z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers o l f n i t z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers o l f n i t – z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers o l f n i t – z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers o l f n i t – z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers o l f n i t z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l z i l...
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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…5 OPERATING MODE …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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5 OPERATING MODE… …5.2 Operating Mode Modbus Registers r a l r a l r a l r a l z i l o l f z i l o l f z i l . n i o l f z i l .
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