ZU25201e_e.doc / Sep-13
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Parameter Description
Serial Communication:
Unit
Number:
Especially with RS 485 applications it is necessary to attach a specific address to
each unit, since up to 32 units can be connected to the same bus. You can
choose any address number between 11 and 99.
Factory setting = 11
The address must not contain a “0“ because these numbers are reserved for collective
addressing.
Serial
Baud
Rate:
Setting
Baud
0*
9600
1
4800
2
2400
3
1200
4
600
5
19 200
6
38 00
* = Factory setting
Serial
Format:
Setting
Data bits
Parity
Stop bits
0*
7
even
1
1
7
even
2
2
7
odd
1
3
7
odd
2
4
7
none
1
5
7
none
2
6
8
even
1
7
8
odd
1
8
8
none
1
9
8
none
2
* = Factory setting
Serial Protocol:
Selects the serial protocol for the cyclic transmission.
0 : the string starts with the serial address of the unit (“Unit
Number”), followed by a space and the value of the register to
be read out. The string ends with a “Line Feed” character and a
“Carriage Return” character.
1 : the unit number is omitted and the string starts with the
register value directly. This allows a little faster transmission
because of the shorter transmission time.
Unit No.
Serial Protocol = 0 :
1 1
+/- X
X
X
X
X
X
LF CR
Serial Protocol = 1 :
+/- X
X
X
X
X
X
LF CR
