The H41q and H51q System Families

Hints to the Structure of the Catalog and

How to Use it

The catalog contains the description of the HIMA Programmable Electronic

Systems (PES) of the system families H41q and H51q.

The introduction contains general hints to the PES and is followed by the

description of the individual types of PES. All the descriptions have the

same structure so that they can each be used independently as device documentation.

The data sheets of the assembly kits complete the device

documentation. They are listed in the order of their component identification

numbers (B xxxx). Each type of PES has a corresponding assembly

kit (see 3.9 and 4.9, overview of assembly kits).

The data sheets of the central modules and IO modules which are usable

in the PES are part of the appendix.

Furthermore, this catalog contains the data sheets for the connection cables

(BV xxxx), hints to external circuits, technical data of the PES and

hints for application.

The programming of the HIMA PES with programming system ELOP II,

startup and maintenance, functions of the operating system, using in safety

systems etc. are described in own manuals. A schedul of all HIMA documentations

is listed in the USD (Update Service Documentation.

10 The HIMA PES

The HIMA PES mainly consists of the H41q and H51q system families.

Both system families are based on the same hardware and software, and

they are the 3rd generation of the field-proven HIMA PES to control preferably

process engineering plants. Additionally personal computers are

used for configuration, logging, operation, and trend recording.

Digital and analog inputs can be processed. Some input modules are designed

for intrinsically safe circuits as well as for electric position sensors

(proximity switches) according to DIN 19234. Digital and analog outputs

are also available.

The HIMA PES are installed in subracks 19 inch 5 resp. 4 units high. The

H41q system family is a compact system consisting of a subrack holding

all components such as central unit, power supplies, fusings, and power

distribution, as well as input/output modules.

The H51q system has a modular structure. A central rack 5 units high containing

the central unit, interface port extensions, monitoring, and power

supplies may have up to 16 associated input/output subracks 4 units high.

The following diagram provides support in selecting the appropriate system

for your PES task (see to the following page):

Conception of the HIMA PES

The HIMA PES of the H41q and H51q system families consist of module

for central devices assembled in one subrack 5 units high 19 inch and of

modules for binary and analog input/output signals which are assembled

in H51q in 4 units 19 inch subracks.

The HIMA PES use personal computers with the programming system

ELOP II for the configuration, monitoring, operation and documentation.

The entry of the user’s program and the compilation into the machine code

is done only on the personal computer without connected PES. To load,

test and to monitor the PLC the personal computer is connected via a serial

interface or a bus system together with the PES.

2.1 Safety and Availability

HIMA PES are designed both for safety related applications up to requirement

class 6 (class derfinition according to DIN V 19250) and for

high availability. Depending on the required safety and availability, HIMA

PES can be supplied as one-channel or two-channel (redundant) devices

with the same modules in the central device as well as in the input/output

level. Redundant modules increase the availability as in case of the failure

of one module this is automatically switched off while the redundant module

continues operation.

2.2 Designs and Types of the PES

The controls can be adapted to the requirements of the plant by equipping

them with the appropriate central modules. The following structures are

possible with the H41q resp. H51q system family:

3 The H41q System Family

The H41q system families comprises compact designed PES in single

channel and redundant models, also with TÜV safety certificate .

All testable input/output modules can be used with both redundant and

single channel models of the central modules.

All modules of the H41q system family meet the requirements for Electromagnetic

compatibility and immunity according to article 10 of the EGguidline

89/336/EWG for the electromagnetic conformity. This is demonstrated

with the vsign within the data sheets of the modules. Also

the systems and modules are wearing a sticky label with this sign.

All models of the H41q system family have all the components required for

control tasks in a 19 inch subrack 5 units high with an integrated cable

tray.

– Depending on the system model, one or two central modules controlled

by micro processors

– Two interfaces RS485 on the central module for a transfer rate of up to

57600 bps

– The central module generates a watchdog signal to switch off the

testable output modules as the second way of switch off in the case of

a fault

– One or two power supply modules 24 V DC/5 V DC to generate the

5 V DC operating voltage for the central modules and the control

voltage for the input/output modules

– Batteries mounted on the rear of the subrack to buffer the sRAM area

and the real-time clock on the central module

– Three power distribution modules 24 V DC for fusing of the power supply

for the inputs and outputs.

– A maximum of 12 slots for input and output modules for digital and

analogue signals

– Direct connection of I/O modules to the central module. All functions

necessary for the connection of the I/O bus are integrated in the H41q

central module

– Integrated cable tray

– Additional modules to connect and to decouple the supply voltage

24 V DC, to supply the watchdog signal and as fan plug-in unit with

fuse and fan run monitoring.

3.1 Conceptions of the Safety Switch Off

In case of faults of output, coupling and central modules and group

switch off

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 fixed or they can be defined in

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

of a system variable for emergency off.

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 agreed in the user’s program

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

module are also be switched off.

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

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

3) 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 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 switched

off.

3.2.2 Central Module F 8653

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, 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)

– 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.

3.2.3 Mechanical Structure and Design

The data sheet of the B 4230 assembly kit shows the mechanical structure

and design of the H41q-M PES.

3.2.4 24 V DC Supply and Distribution

For information to the connection of the supply voltage 24 V DC see

B 4230, wiring assembly kit and chapter 3.8, I/O Level.

3.2.5 5 V DC Supply and Distribution

The 5 V DC power supply does not have to be wired separately as it is already

installed as part of the subrack.

The 5 V DC power is needed by the CPU, the control of the interfaces, and

the data register of the I/O modules. It is generated by a clocked 24 V DC/

5 V DC power supply module bearing the F 7130A identification.

The 5 V DC output voltage of the power supply module (for the CPU, I/O,

and the interfaces) are monitored on the central unit checking undervoltage

or failure.

In case of a faulty power supply module the operating system supplies the

user’s program via a system variable with this information.

In case the 5 V DC system power fails hardware clock and sRAM on the

central module are buffered by a lithium battery which is also on the central

module.

3.2.6 The I/O Bus

Just plugging-in the central module into the subrack establishes connection

to the I/O modules. No further steps are required.

3.3.2 Central Module F 8653

The central module of the PES H41q-H 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, DPR and redundant CU

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

– 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)

– 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 batteries with monitoring.