Specifications

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Protocol Parameters SINEC L1 Section 4-1
4.1 Protocol Parameters SINEC L1
To ensure proper communication, the parameters must not be altered.
Baud rate: 9600 Baud
Parity: even
Data length: 8
Stopbits: 1
Handshake: no handshake
The operating terminal adapts to the default parameters of the SINEC L1 interface.
Therefore it is
not necessary to modify the interface parameters in the PLC.
4.2 Data Types
Random read and write access is possible to any data in the PLC. All byte-structur-
ed data types can also be accessed in bit-mode. The size of the address area
depends on the PLC being used.
Access to the individual bytes of a data word within a data block is also possible.
Direct access is possible to the following data types:
E input bits (read-only)
A output bits
M flag bits
EB input bytes (read-only)
AB output bytes
MB flag bytes
EW input word (read-only)
AW output word
MW flag word
ED input double word (read-only)
AD output double word
MD flag double word
DW data word
DL data word, left-hand (high)
DR data word, right-hand (low)
DD data double word
T timer (read-only)
Z counter (read-only)
The size of each data area is governed by the CPU of the PLC.