HIMA model F3322 analog input card

Description

F3322 In the system descriptions the safety related PES H41q-MS, -HS, -HRS

the ways for shut down if a fault occurs are shown. Depending on the fault

location the reactions of the systems are F3322 fixed or they can be defined in

the user’s program by means of the building block H8-STA-3 and with ac

tivating of a system variable for emergency off.

F3322 Explanation of the table:

1) Module switch off

A faulty testable output module with integrated safety shutdown will

be switched automatically to the safe deenergized safe status.

2) group shut down

If it is requested, a group shut down may be F3322 agreed in the user’s program

so, that all testable output modules appertaining to the group with the faul

ty module are also be switched off.

Inside the user’s program up to 10 testable output modules can be assi

gned to one group by means of the building block H8-STA-3.

3) F3322 Switch off WD of the appertaining CU

In this case the watch dog signal (WD) of the appertain-ing central module

will be switched off.

If systems with redundant central modules and a common I/O bus are

used then the output modules are related to both central modules. In case

of a fault both the watchdog signals of the F3322 central modules are switched

off. That means all the I/O modules are switched off.

If systems with redundant central modules and redundant I/O bus are

used then the output modules are related to one central module and one

I/O bus. In case of a fault only the watch dog signal of the related central

module is switched off. That means only the related I/O modules are swit

ched off.

F3322 The central module of the PES H41q-M contains the essential functions

demonstrated in the structure of the central module:

– Microprocessor

– Flash-EPROMs of the program memory for the operating system and

the user’s program usable for min. 100.000 writing cycles

– Data memory in sRAM

– Multiplexer to connect I/O bus, F3322 DPR and redundant CU (not used in

the H41q-M system)

– Dual Port RAM for fast memory access to the second central module

(not used in the H41q-M system)

– 2 interfaces RS 485 with galvanic isolation. Transmission rate: max.

57600 bps. Set to 9600 bps and to 57600 bps by switch, or setting

also of other transmission rates by software (the software values have

priority)

– F3322 Diagnostic display and 2 LEDs for information out of the system, I/O

level and user’s program

– Power supply monitoring

– I/O-Bus logic for the connection to the input/output modules

– Hardware clock, battery backed

– Fail-safe watchdog

– Battery backup of the sRAMs via batterie with monitoring.

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