Specifications

120
Protocol Parameters IDEC Micro 3 Section 14-3
14.3 Protocol Parameters IDEC Micro 3
The operating terminal adapts to the default parameters of the PU interface. It is
therefore
not necessary to adapt the interface parameters in the PLC.
To ensure proper connection, do
not modify the parameters.
Baud rate: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 375000,
500000 Baud
Parity: none, odd, even
Data bits: 5, 6, 7, 8
Stop bits: 1, 1.5, 2
Handshake: no handshake, hardware, software
14.3.1 Parameter Maximum Waiting Time for Response
This parameter indicates the length of time that the operating terminal waits for the
response from the PLC. The valid range of values is between 10 ms and 2550 ms.
The default value specified by the programming system is 500 ms.
14.3.2 Parameter Delay Until Connection Setup
This parameter is not evaluated.
14.4 Data Type Structure
a) Alphanumerical Texts
Are stored in the memory byte for byte in ascending address order.
b) Binary Variables with a Length of 1, 2 or 4 Bytes
Data with a length of 2 bytes are interpreted in the PLC-conforming byte order for
words.
Data with a length of 4 bytes are interpreted in the PLC-conforming byte order for
long-words.
c) Timer
For access to the timer, the corresponding mode of representation TIMER must be
selected.
d) Counter
For access to the counter, the corresponding mode of representation COUNTER
must be selected.