CTH200 Series PLC User Manual
with pulses, or only execute during the first cycle.
Select communication
protocol: Input 1 defines
Port as the Modbus protocol
and enables it, and 0
defines Port as the PPI and
disables Modbus protocol.
1.2K, 2.4K,
4.8K, 9600,
19.2K, 38.4K,
57.6K, 115.2
1—Odd parity
2—Even parity
All settings use
one stop bit.
Extends standard Modbus
information end timeout
condition by increasing the
specified number of ms for
the standard Modbus
information timeout.
0 means forbid
I/O read and
write
Recommend
MaxIQ 128, allow
to ask all IO of
CTH200.
Sets the number of word
input registers (AI).
0 means forbid
read analog
input.
H224/H224X-32
H226L/H226XL-32
/H228XL-32
Sets the number of available
V storage word hold
registers.
Sets the starting address of
the available holding
register in the V storage
area.
Pointer point to
V memory
When the MBUS INIT
instruction completes, the
Done output is on.
Error output byte contains
the result of the execution of
the instruction.
※ MBUS_SLAVE instruction
MBUS_SLAVE instruction is used to service requests from the Modbus master station and must
be executed every cycle in order to check and respond to Modbus requests. When EN input
switch on, it execute each cycle without input parameters.