B+B SmartWorx SmartSwarm 300, Руководство пользователя

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SmartSwarm 300 Series
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There are a number of ways to specify the addresses of registers in the slave device. SmartSwarm 351 uses the
convention of a base register type (Coil, Status, Input or Holding) and an offset, starting from zero, within that
register type. Hence, a register defined within SmartSwarm 351 as ‘Holding Register 5) might appear in other
manufacturers data as register 40,006, or 400,006.
SmartSwarm 351 decodes information exchanged using the following Modbus commands:
Function Code Description
01 Read Coil Status
02 Read Input Status
03 Read Holding registers
04 Read Input registers
05 Force Single Coil*
06 Preset Single register*
15 Force multiple Coils*
16 Preset multiple registers*
22 Mask Write 4X register*
23 Read/Write 4X registers*
Table 51. Supported Modbus commands