Siemens SIMATIC S5-115U, Руководство пользователя

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Technical Description S5-115U Manual
Front Panels of the Central Processing Units
The following operator functions are possible on the front panel of the CPUs:
• Plug in a memory submodule
• Connect a programmer (PG) or an operator panel (OP)
• Connect SINEC L1
• Connect PLCs or devices of other manufacture
- CPU 943/944:
connection with ASCII driver or point-to-point connection (master function)
- only in the case of the CPU 944: computer interface (3964(R) procedure)
• Set the operating mode
• Preset retentive feature
• Perform Overall Reset
• Change the operating system submodule (only CPU 944)
LEDs indicate the current CPU status. Figure 2-7 compares the individual CPUs.
Figure 2-7. Front View of the Central Processing Units
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CPU
941
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CPU
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Receptacle for memory
submodule
Control panel
Connection sockets for PG,
OP or SINEC L1 LAN
Connection sockets for PG, OP or SINEC L1 LAN,
point-to-point connection (master function),
ASCII driver, (CPU 944 only:) computer interface
Operating mode and error LEDs
Receptacle for operating system submodule (only
CPU 944)
View of CPU 941/942
View of CPU 943/944
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EWA 4NEB 811 6130-02b