ifm
Device manual AS-i M4 Gateway Profibus DPV1 (AC1375, AC1376)
2012-02-23
Function
Data management
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4 Function
Data management........................................................................................................................16
Introduction AS-i data...................................................................................................................17
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4.1 Data
management
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The device consists of different units:
AS-i Master 1
AS-i Master 2
(optional)
SRAM-Speicher
SRAM memory
Flash-Speicher
Flash memory
Text-/Grafik-Anzeige
Text/graphics display
Feldbusschnittstelle Profibus DPV1
Fieldbus interface Profibus DPV1
RS-232C Schnittstelle
RS-232C interface
(only AC1376 for Firmware update)
Zentraleinheit
Central unit
The central processing unit (CPU) ensures the data transfer between the subsystems. It manages
the remanent flash memory and the volatile RAM memory.
The flash memory (1 Mbyte) stores non-volatilely...
the
system
configuration including the AS-i configurations,
the runtime system (RTS),
the remanent data.
After power-on of the device the operating system runs in the SRAM memory (1 Mbyte).
The AS-i masters of AC1376 have one separate microcontroller each.
The AS-i master communicates with the connected slave modules on the AS-i bus according to
the AS-i specification.
