Supported Modbus functions
7SJ61/62/63 6MD63 – Modbus
C53000-L1840-C001-01
2-2
Function
code
Function
name
Description Broadcast
supported?
15 Force
Multiple Coils
(0X-Register)
Writing (force to ON or OFF) one or several coil status registers (and
binary outputs of the SIPROTEC device assigned with these).
A maximum of 1970 registers can be written with one message.
yes
16 Preset
Multiple Regs
(4X-Register)
Function presets one or several holding registers register.
A maximum of 125 registers can be written with one message.
There are none writable holding registers for the SIPROTEC devices at
present.
yes
Table 2-1 Supported Modbus functions
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