AccuEnergy AcuDC 210 Series, Руководство пользователя

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52
AcuDC 210/220 Series
Code Function Action
01 Read Relay Output Obtain current status of Relay Output
02 Read Digital Input Obtain current status of Digital Input
03 Read Registers Obtain current binary value from one or more registers
05 Control Relay Output Force relay state to "ON" or "OFF"
16 Preset Multiple-Registers
Place specific binary values into a series of consecutive
Multiple-Registers
Data Field
The data field is constructed using sets of two hexadecimal digits, in the range of 00
to FF hexadecimal. The data field of messages sent from a master to slave devices
contains additional information which the slave must use to take the action defined
by the function code. This can include items like discrete and register addresses, the
quantity of items to be handled, and the count of actual data bytes in the field.
Check Field
Check field is used in the master and slave device to find errors in the data
transmitting. Inaccuracies may occur within a data group due to noise or other
Table 4.2 Function Code