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Contents APCI-7xxx-3

7.4

Pin assignments (APCI-7500-3): RS422 with

handshake

signals .........................................................41

7.5

Pin assignments (APCI-7420-3 and APCI-7300-3): RS422

with

handshake signals .................................................41

7.6

Connection cable – APCI-7500-3 ..................................42

7.7

Connection examples....................................................43

7.7.1

APCI-7500-3 ........................................................................43

RS232 cabling .....................................................................43

RS422 cabling .....................................................................44

RS485 cabling .....................................................................44

Current loop (20 mA) cabling..............................................45

7.7.2

APCI-7300-3, APCI-7420-3, APCI-7500-3/4C ....................... 47

RS232 cabling .....................................................................47

RS422 cabling .....................................................................47

RS485 cabling .....................................................................48

Current loop (20 mA) cabling..............................................48

7.7.3

APCI-7800-3 ........................................................................50

7.8

Connection examples....................................................52

7.8.1

RS232 cabling .....................................................................52

7.8.2

RS422 cabling .....................................................................52

7.8.3

RS485 cabling .....................................................................53

7.8.4

Current Loop (20 mA) cabling .............................................53

TESTING THE BOARD ...........................................55

8.1

Connecting a shorting plug ...........................................55

8.2

Testing the board with the MTTTY program.....................57

RS422, RS232 and 20 mA Current Loop ..............................57

RS485 ..................................................................................59

REPLACING THE MODULES..................................60

9.1

Replacing the MX modules ............................................60

GLOSSARY..........................................................61

INDEX ................................................................64

Содержание APCI-7300-3

Страница 1: ..._______________________________________ ADDI DATA GmbH Dieselstr 3 D 77833 Ottersweier Phone 49 7223 9493 0 Fax 49 7223 9493 92 E mail info addi data com Important information Communication boards APCI 7300 3 APCI 7420 3 APCI 7500 3 APCI 7800 3 Pin assignment RS232 modules 01 02 03 2007 Internet www addi data com ...

Страница 2: ...3 APCI 7500 3 from Rev D Internet Manual download Edition 02 03 03 2007 b and later editions Rev A B See Rev C but with changed modem control signals DCD DSR at RS232 modules APCI 7800 3 from Rev C Internet Manual download Edition 02 03 03 2007 b and later editions 9 pin SUB D connector pin assignment with changed modem control signalsDCD DSR APCI 7300 3 7420 3 7500 3 Rev A C APCI 7800 3 Rev A B S...

Страница 3: ... D connector pin assignment with changed modem control signals DCD DSR APCI 7800 3 Rev A B Standard 78 pin SUB D connector pin assignment APCI 7800 3 from Rev C Pin No Signal Pin No Signal 1 6 11 16 62 67 72 77 RI 1 6 11 16 62 67 72 77 RI 2 7 12 17 63 68 73 78 DTR 2 7 12 17 63 68 73 78 DTR 3 8 13 18 40 64 69 74 GND 3 8 13 18 40 64 69 74 GND 4 9 14 20 60 65 70 75 TXD 4 9 14 20 60 65 70 75 TXD 5 10 ...

Страница 4: ...____________________________________ Should you have questions that you do not find in the manual or on our website http www addi data com please contact us by phone or e mail ADDI DATA GmbH Dieselstr 3 D 77833 Ottersweier Phone 49 7223 9493 0 Fax 49 7223 9493 92 E mail info addi data com Internet www addi data com ...

Страница 5: ...fied Edition 02 03 11 2007 ADDI DATA GmbH Dieselstraße 3 D 77833 OTTERSWEIER 49 0 7223 9493 0 Technical description APCI 7300 3 APCI 7420 3 APCI 7500 3 4C APCI 7800 3 1 port 2 port 4 port 8 port serial interface for the PCI bus ...

Страница 6: ...nly is protected by copyright Duplication of the information contained in the operating instructions and of any other product information or disclosure of this information for use by third parties is not permitted unless this right has been granted by the product licence issued Non compliance with this could lead to civil and criminal proceedings ADDI DATA software product licence Please read this...

Страница 7: ...afety precautions yellow leaflet If this leaflet is not with the documentation please contact us and ask for it Observe the instructions of the manual Make sure that you do not forget or skip any step We are not liable for damages resulting from a wrong use of the board Used symbols i IMPORTANT designates hints and other useful information WARNING It designates a possibly dangerous situation If th...

Страница 8: ...MX485 17 With optical isolation MX422 G MX485 G 17 4 3 3 20mA constant current loop MXTTY 18 4 4 Component scheme and block diagrams 19 5 INSTALLATION OF THE BOARD 25 5 1 Opening the PC 25 5 2 Selecting a free slot 25 5 3 Plugging the board into the slot 26 5 4 Closing the PC 27 6 BOARD CONFIGURATION 28 6 1 Configuration under Windows XP 2000 95 98 Server 2003 29 6 2 Board test 32 6 3 Questions an...

Страница 9: ...ing 45 7 7 2 APCI 7300 3 APCI 7420 3 APCI 7500 3 4C 47 RS232 cabling 47 RS422 cabling 47 RS485 cabling 48 Current loop 20 mA cabling 48 7 7 3 APCI 7800 3 50 7 8 Connection examples 52 7 8 1 RS232 cabling 52 7 8 2 RS422 cabling 52 7 8 3 RS485 cabling 53 7 8 4 Current Loop 20 mA cabling 53 8 TESTING THE BOARD 55 8 1 Connecting a shorting plug 55 8 2 Testing the board with the MTTTY program 57 RS422 ...

Страница 10: ...ling 4 port interface 151H45 23HFig 7 8 RS485 cabling 4 port interface 152H45 24HFig 7 9 Active transmission active reception 4 port serial interface 153H46 25HFig 7 10 Active transmission passive reception 4 port serial interface 154H46 26HFig 7 11 Passive transmission active reception 4 port serial interface 155H47 27HFig 7 12 Passive transmission passive reception 4 port serial interface 156H47...

Страница 11: ...passive reception 175H57 47HFig 8 4 Connection of the shorting plug for 20 mA current Loop passive transmission active reception 176H57 48HFig 8 5 The MTTTY program 177H58 49HFig 8 6 Window Comm Status 178H59 50HFig 8 7 Window Flow Control 179H59 51HFig 8 8 Window Flow Control Settings 180H59 52HFig 9 1 Removing the MX module 181H61 53HFig 9 2 Inserting the MX module 182H61 ...

Страница 12: ...f port 2 187H37 59HTable 7 5 Pin assignment of port 3 188H37 60HTable 7 6 Pin assignment of port 4 189H38 61HTable 7 7 Pin assignment of port 5 190H38 62HTable 7 8 Pin assignment of port 6 191H39 63HTable 7 9 Pin assignment of port 7 192H39 64HTable 7 10 Pin assignment of port 8 193H40 65HTable 7 11 Pin assignment of the 37 pin connector RS422 with handshake signals 194H41 66HTable 7 12 Pin assign...

Страница 13: ...he board must not be used for safety related functions for example for emergency stop functions The APCI 7xxx 3 board must not be used in potentially explosive atmospheres The APCI 7xxx 3 board must not be used as electrical equipment according to the Low Voltage Directive 2006 95 EC 1 3 General description of the board The board APCI 7xxx 3 provides the personal computer PC with 1 port 2 port 4 p...

Страница 14: ...on cable metallized plastic hoods shielded cable cable shield folded back and firmly screwed to the connector housing The board supports serial communication through 1 2 or 4 asynchronous serial ports The use of the board depends on the following parameters See table below ...

Страница 15: ...ransmitter control 1 2 km industry MX485 G RS485 DTR RTS transmitter control 1 2 km very noisy industrial environment If the basic board APCI 7xxx 3 is used with optically isolated modules and non isolated modules then the safety built by the creeping distance of 3 2 mm is not ensured for the non isolated modules The use of the board in a PC could change the PC features regarding noise emission an...

Страница 16: ...or all operating modes the signal lines are to be twisted in pairs with GND Use exclusively connection cable with twisted pairs The housing of the peripheral connector is to be firmly screwed together with the shield of the cable is to assure a low resistance connection 100 mΩ between the shield and the housing of the PC The shield of the cable is to be earthed on both ends Do not remove or alter ...

Страница 17: ...ons trained in electronics are entitled to perform the following works installation use maintenance 2 2 Personal protection Consider the country specific regulations about the prevention of accidents electrical and mechanical installations radio interference suppression ...

Страница 18: ...APCI 7xxx 3 Figures and Tables 14 3 HANDLING OF THE BOARD Fig 3 1 Correct handling ...

Страница 19: ... are assembled on a 4 layer printed circuit card Dimensions 151 mm 99 mm Weight approx 120 g Installation in 32 64 bit PCI slot 5 V and 3 3 V Connection to the peripheral APCI 7300 3 9 pin SUB D male connector APCI 7420 3 2 x 9 pin male SUD D male connector APCI 7500 3 37 pin SUB D male connector APCI 7500 3 4C 4x 9 pinSUB Dmaleconnectorwith2nd slot Connection cables for the APCI 7500 3F3F 1F ST07...

Страница 20: ... pin SUB D female connector Connection cable for the APCI 7800 3F4F 1F ST7809 78 pin SUB D male connector to 8 x 9 pin SUB D male connector ST075 78 pin SUB D male connector to 8 x 25 pin SUB D male connector WARNING The supply lines must be installed safely against mechanical loads 1 Not contained in the standard delivery Please order separately ...

Страница 21: ... Windows XP 2000 NT 95 98 Server 2003 DOS Linux Energy requirements Operating voltage of the PC 5 V 5 Current consumption without load typ see table 10 APCI 7300 3 APCI 7400 3 APCI 7500 3 APCI 7800 3 5 V from PC 160 mA 160 mA 160 mA 220 mA Add to this data the current consumption of the used modules according to the following table MXxxx MXxxx G RS 232 10 mA 86 mA RS 422 10 mA 46 mA RS 485 10 mA 5...

Страница 22: ...Baud ESD protection 15 kV Creeping distance 3 2 mm Test voltage 1000 VAC Short circuit protection 4 3 2 RS422 RS485 CCITT recommendation V 11 US norm EIA RS422 RS485 Without optical isolation MX422 MX485 Max transfer rate 1 MBaud Transfer rate on request Up to 2 5 MBaud ESD protection 15 kV Transorb diodes With optical isolation MX422 G MX485 G Max transfer rate 1 Mbaud Transfer rate on request Up...

Страница 23: ...0 VAC Load 500 Ω Voltage reversal and short circuit protection through transorb diodes i IMPORTANT Basic board and 1MBd configuration option Please check that the quartz frequency is correctly set in ADDIREG or in the device manager of your operating system See X197H6 1X for Windows XP 2000 The 1M Baud rate can only be programmed with the device drivers delivered with the board ...

Страница 24: ...APCI 7xxx 3 Figures and Tables 20 4 4 Component scheme and block diagrams Fig 4 1 Component scheme of the APCI 7300 3 APCI 7420 3 and APCI 7500 3 ...

Страница 25: ...APCI 7xxx 3 Figures and Tables 21 Fig 4 2 Component scheme of the APCI 7800 3 ...

Страница 26: ...APCI 7xxx 3 Figures and Tables 22 Fig 4 3 Component scheme of the APCI 7800 3 solder side ...

Страница 27: ...APCI 7xxx 3 Figures and Tables 23 Fig 4 4 Block diagram of the APCI 7300 3 Fig 4 5 Block diagram of the APCI 7420 3 ...

Страница 28: ...APCI 7xxx 3 Figures and Tables 24 Fig 4 6 Block diagram of the APCI 7500 3 Fig 4 7 Block diagram of the APCI 7500 3 4C ...

Страница 29: ...APCI 7xxx 3 Figures and Tables 25 Fig 4 8 Block diagram of the APCI 7800 3 ...

Страница 30: ...et 5 1 Opening the PC Switch off your PC and all the units connected to the PC Pull the PC mains plug from the socket Open your PC as described in the manual of the PC manufacturer 5 2 Selecting a free slot Insert the board in a free PCI 5 V or 3 3 V slot 32 64 bit Fig 5 1 Slot types Remove the back cover of the selected slot according to the instructions of the PC manufacturer Keep the back cover...

Страница 31: ...APCI 7xxx 3 Figures and Tables 27 Take the board out of its protective pack 5 3 Plugging the board into the slot Insert the board vertically into the chosen slot Fig 5 2 Inserting the board ...

Страница 32: ...e board to the rear of the PC housing with the screw which was fixed on the back cover Fig 5 3 Fastening the board at the back cover Tighten all the loosen screws 5 4 Closing the PC Close your PC as described in the manual of the PC manufacturer ...

Страница 33: ...n for installing and uninstalling the different drivers is to be found in the delivered description Installation instructions for the PCI and ISA bus A link to the corresponding PDF file is available in the navigation pane Bookmarks of Acrobat Reader The board is supplied with a driver CD ROM CD1 containing ADDICOM software samples with API function for the ADDI DATA boards in 32 bits ...

Страница 34: ...s through double click Start the device manager of your operating system under Start Settings Control panel System In the FIFO register the following settings are possible Fig 6 1 FIFO settings under Windows 2000F6F F The example shows the settings under Windows 2000 PCI bus and device number Management of the transmitter and receiver buffer Data flow control Reset the standard settings ...

Страница 35: ...S 485 echo enable For the control of the receiver at RS485 half duplex communication Checked During sending of data of the board to the peripheral the receiver of the board is released Not checked During sending of data of the board to the peripheral the receiver of the board is blocked The example shows the settings under Windows 2000 ...

Страница 36: ...board APCI 7xxx 3 sender to the peripheral device receiver no serial data flow Checked Current flows Not checked No current flows Current flows reception Definition of the current flow in the receiving current loop i e the non operative connection of the board APCI 7xxx 3 receiver to the peripheral device sender no data flow Checked Current flows Not checked No current flows The example shows the ...

Страница 37: ... The standard PC quartz crystal frequency is 1 8432 MHz so that the max baud rate that can be set is 115200 6 2 Board test You can test if you board is not correctly installed with a shorting plug and the test software MTTTY The setup file for the test software MTTTY is supplied on the CD ROM under CD MMTTY The program is described in chapter X198H7 7 3X The example shows the settings under Window...

Страница 38: ... data de Free downloads of standard software You can download the latest version of the software for the board APCI 7xxx 3 H68Hhttp www addi data comH i IMPORTANT Before using the board or in case of malfunction during operation check if there is an update of the product technical description driver The current version can be found on the internet or contact us directly ...

Страница 39: ... 100 Ω DSR 20 1 DCD XMIT CL DATA TA Tsource RTS 21 2 RxD XMIT CL DATA TB Port 4 Rsource CTS 22 3 TxD RCV CL DATA RA Tx Rx Tx Rx RB RCV CL DATA RI 23 4 DTR Rab 1 TA XMIT CL DATA DCD 24 5 GND GND GND GND TB XMIT CL DATA RxD 25 6 DSR 100 Ω 120 Ω Tx Rx RA RCV CL DATA TxD 26 7 RTS Tsource Port 3 Rab 1 DTR 27 8 CTS Rsource GND GND GND GND 28 9 RI RCV CL DATA RB Tx Rx 120 Ω 100 Ω DSR 29 10 DCD XMIT CL DA...

Страница 40: ...SUB D male connector Table 7 2 Pin assignment of the 9 pin connector RS485 RS422 Current Loop RS232 Pin Pin RS232 Current Loop RS422 RS485 120 Ω 100 Ω DSR 6 1 DCD XMIT CL DATA TA Tsource RTS 7 2 RxD XMIT CL DATA TB Rsource CTS 8 3 TxD RCV CL DATA RA Tx Rx Tx Rx RB RCV CL DATA RI 9 4 DTR Rab 1 5 GND GND GND GND TA Tx422 RA Rx422 TB Tx422 RB Rx422 Rab Connection to a terminal resistor 1 Cable connec...

Страница 41: ...or of the board Table 7 3 Pin assignment of port 1 Pin RS 232 RS 422 RS 485 RS422PEP Current Loop 20 TxD RA Tx Rx Rx RCV CL DATA 19 RxD TB Tx XMIT CL DATA 18 GND GND GND 39 RTS RTS Tsource 38 CTS RTS Rsource 59 DCD TA Tx XMIT CL DATA 58 DSR 100 Ω 120 Ω CTS 78 DTR Rab CTS 77 RI RB Tx Rx RX RCV CL DATA ...

Страница 42: ...urce 55 CTS RTS Rsource 37 DCD TA Tx XMIT CL DATA 36 DSR 100 Ω 120 Ω CTS 17 DTR Rab CTS 16 RI RB Tx Rx RX RCV CL DATA Table 7 5 Pin assignment of port 3 Pin RS 232 RS 422 RS 485 RS422PEP Current Loop 14 TxD RA Tx Rx Rx RCV CL DATA 15 RxD TB Tx XMIT CL DATA 35 13 GND GND GND 34 RTS RTS Tsource 33 CTS RTS Rsource 54 DCD TA Tx XMIT CL DATA 53 DSR 100 Ω 120 Ω CTS 73 DTR Rab CTS 72 RI RB Tx Rx RX RCV C...

Страница 43: ...ource 50 CTS RTS Rsource 32 DCD TA Tx XMIT CL DATA 31 DSR 100 Ω 120 Ω CTS 12 DTR Rab CTS 11 RI RB Tx Rx RX RCV CL DATA Table 7 7 Pin assignment of port 5 Pin RS 232 RS 422 RS 485 RS422PEP Current Loop 9 TxD RA Tx Rx Rx RCV CL DATA 10 RxD TB Tx XMIT CL DATA 8 GND GND GND 30 29 RTS RTS Tsource 28 CTS RTS Rsource 49 DCD TA Tx XMIT CL DATA 48 DSR 100 Ω 120 Ω CTS 68 DTR Rab CTS 67 RI RB Tx Rx RX RCV CL...

Страница 44: ...urce 45 CTS RTS Rsource 27 DCD TA Tx XMIT CL DATA 26 DSR 100 Ω 120 Ω CTS 7 DTR Rab CTS 6 RI RB Tx Rx RX RCV CL DATA Table 7 9 Pin assignment of port 7 Pin RS 232 RS 422 RS 485 RS422PEP Current Loop 4 TxD RA Tx Rx Rx RCV CL DATA 5 RxD TB Tx XMIT CL DATA 3 GND GND GND 25 24 RTS RTS Tsource 23 CTS RTS Rsource 44 DCD TA Tx XMIT CL DATA 43 DSR 100 Ω 120 Ω CTS 63 DTR Rab CTS CTS 62 RI RB Tx Rx RTS RCV C...

Страница 45: ...TA 61 RxD TB Tx XMIT CL DATA 40 GND GND 42 RTS RTS Tsource 41 CTS RTS Rsource 22 DCD TA Tx XMIT CL DATA 21 DSR Rab CTS CTS 2 DTR 100 Ω 120 Ω CTS 1 RI RB Tx Rx RX RCV CL DATA TA Tx422 RA Rx422 TB Tx422 RB Rx422 Rab Connection to the terminal resistor 1 Cable connection to 100 Ω 120 Ω terminates the lines RS422 RS485 with the resistor 100 Ω 120 Ω ...

Страница 46: ...25 6 IA Port 3 RA 26 7 CB Port 3 IB 27 8 CA GND 28 9 RB IA 29 10 TA Port 2 CB 30 11 TB Port 2 CA 31 12 RA RB 32 13 IB TA 33 14 GND TB 34 15 IA Port 1 RA 35 16 CB Port 1 IB 36 17 CA GND 37 18 RB 19 TA Tx422 RA Rx422 TB Tx422 RB Rx422 IA CTS CA RTS IB CTS CB RTS 7 5 Pin assignments APCI 7420 3 and APCI 7300 3 RS422 with handshake signals Table 7 12 Pin assignment of the 9 pin connector RS422 with ha...

Страница 47: ...module 2 Cable connection to 100 Ω 120 Ω terminates the RS422 RS485 lines with 100 Ω 120 Ω resistor Wire bridges between pin 20 and 6 Fig 7 5 Connection cable ST075 4 x 9 pin 1 Resistor integrated on the MX module 2 Cable connection to 100 Ω 120 Ω terminates the RS422 RS485 lines with 100 Ω 120 Ω resistor Wire bridges between pin 4 and pin 6 ...

Страница 48: ...x 3 Figures and Tables 44 7 7 Connection examples 7 7 1 APCI 7500 3 RS232 cabling Fig 7 6 RS232 cabling 4 port interface 1 If the modem control signals are not used they must be bridged externally via a jumper ...

Страница 49: ...APCI 7xxx 3 Figures and Tables 45 RS422 cabling Fig 7 7 RS422 cabling 4 port interface RS485 cabling Fig 7 8 RS485 cabling 4 port interface ...

Страница 50: ...ne of them has to supply the necessary current If the transmitter supplies the current it is active The receiver is passive In reverse if the receiver supplies the current it is active Fig 7 9 Active transmission active reception 4 port serial interface Fig 7 10 Active transmission passive reception 4 port serial interface ...

Страница 51: ...APCI 7xxx 3 Figures and Tables 47 Fig 7 11 Passive transmission active reception 4 port serial interface Fig 7 12 Passive transmission passive reception 4 port serial interface ...

Страница 52: ...APCI 7xxx 3 Figures and Tables 48 7 7 2 APCI 7300 3 APCI 7420 3 APCI 7500 3 4C RS232 cabling Fig 7 13 RS232 cabling 9 pin connector RS422 cabling Fig 7 14 RS422 cabling 9 pin connector ...

Страница 53: ...APCI 7xxx 3 Figures and Tables 49 RS485 cabling Fig 7 15 RS485 cabling 9 pin connector Current loop 20 mA cabling Fig 7 16 Active transmission active reception 9 pin connector ...

Страница 54: ...APCI 7xxx 3 Figures and Tables 50 Fig 7 17 Active transmission passive reception 9 pin connector Fig 7 18 Passive transmission active reception 9 pin connector ...

Страница 55: ...APCI 7xxx 3 Figures and Tables 51 Fig 7 19 Passive transmission passive reception 9 pin connector 7 7 3 APCI 7800 3 Fig 7 20 Connection cable ST7809 8 x 9 pin ...

Страница 56: ...APCI 7xxx 3 Figures and Tables 52 Fig 7 21 Connection cable ST7825 8 x 25 pin ...

Страница 57: ...Figures and Tables 53 7 8 Connection examples 7 8 1 RS232 cabling Fig 7 22 RS232 cabling 1 If the modem control signals are not used they must be bridged via a wire bridge 7 8 2 RS422 cabling Fig 7 23 RS422 cabling ...

Страница 58: ...A cabling Active passive When a transmitter and a receiver communicate one of them has to supply the necessary current If the transmitter supplies the current it is active The receiver is passive In reverse if the receiver supplies the current it is active Fig 7 25 Active transmission active reception ...

Страница 59: ...APCI 7xxx 3 Figures and Tables 55 Fig 7 26 Active transmission passive reception Fig 7 27 Active transmission passive reception 4 fold interface Fig 7 28 Passive transmission passive reception ...

Страница 60: ...ed below and the test program MTTTY you can carry out a self test of the board Please note the signal connection of the different ports through the 9 pin shorting plug for the test The recipient will be switched on the transmitter Fig 8 1 Connection of the shorting plug RS232 Fig 8 2 Connection of the shorting plug RS422 ...

Страница 61: ...es and Tables 57 Fig 8 3 Connection of the shorting plug for 20 mA Current Loop active transmission passive reception Fig 8 4 Connection of the shorting plug for 20 mA current Loop passive transmission active reception ...

Страница 62: ...TTY program Select the right COM interface under Port Connect it with File Connect If the shorting plug is connected each key stroke data transmission must result in the corresponding key character displayed on the screen data reception If the test is successfully carried out the board works Once the port is initialised the state of the Modem Control Signals can be read in Modem Status If the RTS ...

Страница 63: ...6 Window Comm Status You can configure the handshake of the modem control signals according to your application as follows Click in the menu of the MTTY program on TTY and select Flow Control see figure below Fig 8 7 Window Flow Control After this the window Flow Control Settings appears see figure below Here you can do the required settings Fig 8 8 Window Flow Control Settings ...

Страница 64: ...essages RS485 i IMPORTANT For the self test of the RS485 mode a short plug is needed This operating mode shall be set firstly via the device manager of Windows XP 2000 In the device manager of Windows XP 2000 select under Settings RS485 ECHO enable and confirm with OK Start MTTTY and check with key press if the interface works correctly ...

Страница 65: ...ish to effect the replacement yourself consider the following Observe the possible combinations according to the intended purpose of the board Do observe the Safety precautions Insert remove the module carefully according to the following illustrations 9 1 Replacing the MX modules Fig 9 1 Removing the MX module Fig 9 2 Inserting the MX module ...

Страница 66: ...ition board or a printer Duplex The ability to both send and receive data simultaneously over the same communications line Gain The factor by which an incoming signal is multiplied Ground A common reference point for an electrical system Half duplex Transmission in either direction but not simultaneous Handshaking Exchange of predetermined signals between two devices establishing a connection Usua...

Страница 67: ...simplest protective circuitry is the parallel switching of a resistance Protective diode At the input of the integrated MOS Metal Oxide Semi Conductor circuits used diodes which operate at the permitted input voltages in the reverse range but at overvoltage in the transition range and therefore protects the circuits against damage Resolution The smallest significant number to which a measurement c...

Страница 68: ...in a fixed time relationship to another event In software it refers to a function that begins an operation and returns to the calling program only when the operation is complete Timer The timer allows the adaptation of program processes between processor and peripheral devices It usually contains from each other independent counters and can be programmed for several operation types over a control ...

Страница 69: ...uirements 16 F FIFO settings under Windows 2000 29 G Glossary 60 H Handling of the board 13 I Installation of the board 25 Intended use 9 Internet 31 L Limit values 16 M MTTTY program 55 MX module Inserting 58 Removing 58 P Physical set up of the board 14 Pin assignment APCI 7800 3 34 R Replacing the modules 58 RS232 Cabling APCI 7300 3 APCI 7420 3 APCI 7500 3 4C 45 Cabling APCI 7500 3 41 Cabling ...

Страница 70: ...APCI 7xxx 3 Figures and Tables 66 U Update 31 Usage restrictions 9 User Personal protection 12 Qualification 12 ...

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