Eaton easy800, Руководство пользователя

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5 Function blocks
5.30 SR, shift register
252
Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
The workpieces reach the machining stations in this order. When the
workpiece is changed, the stations read the required production steps from
their permanently assigned register field.
When workpiece 1 moves to the first station, the forwards pulse input coil
SR01FP and the shift register SR01 receive production code 1 at input
SR01I1 from the double word marker MD11.
Production code 1 is now at the register field SR01D1 for the first machining
station which reads it from double word marker MD01.
The finished workpiece is then transferred to station 2.
The shift register accepts the production code 2 for the next workpiece.
Production code 1 moves one place forwards, as does the remaining register
content. It now stands at register output SR01D2. It reaches machining
station 2 via double word marker MD02.
The process is repeated for each further workpiece and for each further
machining station until the finished workpieces leave the line.
The coils are programmed in the circuit diagram of easy800:
Figure 184:easy800 circuit diagram for example 2
• The enable coil SR01EN is permanently active, the function block is not
switched off.
• Marker M09 switches the forwards pulse input coil SR01FP.
The figure on the left shows the parameter display and the parameter set.
After defining shift register number 01, you set here the following
parameters:
• the DW operating mode for the double word marker format.
• the double word markers for receiving the production code.
------------------------------ Ä SR01EN
M 09-------------------------- Ä SR01FP
SR01 DW +
>I1 MD11
>I2
D1> MD01
D2> MD02
D3> MD03
D4>
D5>
D6>
D7>
D8>