Siemens Cerberus Dati Technical Manual

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CMX Input Output Multiplexing System

Technical Manual

CMX

Document no e1110a Edition 01.96 Supersedes e1110

Manual Hardware Installation Section 3

TABLE OF CONTENTS

1 INTRODUCTION____________________________________________________________5

1.1 SCOPE OF THIS DOCUMENT________________________________________________________________ 5

1.2 RELATED PUBLICATIONS___________________________________________________________________ 5

2 SYSTEM DESCRIPTION _____________________________________________________7

3 THE IC-2 COMMUNICATION INTERFACE ______________________________________11

4 THE CMX-24I BOARD ______________________________________________________14

5 THE CMX-24O BOARD _____________________________________________________19

6 THE CMX-16/8 BOARD _____________________________________________________25

7 THE RELAYS OUTPUT BOARD CMX-RB ______________________________________29

8 CMX-PS POWER SUPPLY UNIT______________________________________________31

9 ACCESSORIES ___________________________________________________________33

9.1 THE CMX-MB MOUNTING BRACKET_________________________________________________________ 33

9.2 THE CMX-BP CONNECTION BACKPLANE ____________________________________________________ 36

9.3 THE CMX-SB SINGLE BOX _________________________________________________________________ 36

9.4 THE CMX-RM RACK MOUNT________________________________________________________________ 37

10 HARDWARE INSTALLATION _______________________________________________39

10.1 POWER REQUIREMENTS AND CONNECTIONS ______________________________________________ 39

10.2 NETWORK PLANNING ____________________________________________________________________ 40

10.2.1 CONNECTION TO THE GATEWAY GW-00 ______________________________________________ 40

10.2.2 CONNECTION TO THE GATEWAY GW-01 ______________________________________________ 41

10.3 CONNECTION TO INPUTS AND OUTPUTS ___________________________________________________ 42

10.3.1 CONNECTION TO THE CMX-24I _______________________________________________________ 42

10.3.2 CONNECTION TO THE CMX-24O ______________________________________________________ 42

10.3.3 CONNECTION TO THE CMX-16/8______________________________________________________ 43

10.3.4 CONNECTION TO THE CMX-RB _______________________________________________________ 43

11 TROUBLESHOOTING _____________________________________________________45

12 GLOSSARY _____________________________________________________________47

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13 ANNEX A - BOARD SETTINGS ______________________________________________49

13.1 BAUD RATE _____________________________________________________________________________49

13.2 INPUT/OUTPUTS DEFAULT STATUS _________________________________________________________49

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INTRODUCTION

1 Introduction

1.1 Scope of this document

This document describes the Cerberus Dati's CMX Input Output Multiplexing System. CMX is a system, composed by a set of components, that will allow your LMS or CMS system to manage digital I/O signals. Using the CMX you can interface existing old security panels or technological devices. You can collect from them digital inputs (dry contact or open collector signals) and send to them digital outputs (relays or open collector outputs). CMX system is composed by electronic boards and by mounting devices that allow you to install it easily and quickly. In this manual you will find:

− an overview of the system architecture;

− a description of system components and how to configure them;

− notes about the installation of hardware, using the mounting accessories supplied by Cerberus Dati;

− power requirements and connections, to properly supply the CMX boards;

− information about connections characteristics e.g. cable dimensions and maximum lengths;

− external I/O connections characteristics;

− how to detect malfunctioning and problems during board operations.

1.2 Related publications

This manual contains all the information needed to understand the principle of operation and to install CMX. However, if you wish to understand how the CMX is related to other components of the LMS/CMS system architecture the following Cerberus Dati documents could be useful:

• LMS modular Installation Manual e1116

• LMS modular Configuration Manual e1108

• LMS modular User Manual e1109

• CMS Installation Manual CDI-10-003-E

• CMS Configuration Manual CDI-10-006-E

• CMS User Manual CDI-10-005-E

• GW-00 Technical Manual e1114

• GW-01 Technical Manual e1112

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SYSTEM DESCRIPTION

2 System description

The CMX systems is composed of

• active components electronic boards CMX-24I, CMX-24O, CMX-16/8 communication interface IC-2 relay output CMX-RB

• passive components accessories for board mounting: CMX-SB, CMX-MB, CMX-RM , CMX-BP

The network architecture that follows apply only to the active components; both active and passive components will be described in the following paragraphs, from 2.2 to 2.9. The CMX in the LMS/CMS network architecture is at the same level as CZ10 or CZ12 control panels. It interacts directly with the field devices and transmits upward the messages using a high-level protocol. Like CZ10 and CZ12, the CMX communicates with LMS/CMS through the gateway, a dedicated piece of hardware manufactured by Cerberus Dati that manages the communications to and from the control panels and the computerbased supervising system (LMS or CMS) (see Fig. 2.1) The CMX system architecture is different than those of CZ10 or CZ12. The CZxx panels can be connected to the gateway only in a point-to-point configuration: CMX can be connected in a multidrop configuration. The Gateway communicates using a 3-wire RS-232 serial protocol. The CMX communicate using a 2-wire RS485 serial protocol, that allows longer distances without modems. The IC-2 communication interface is the first device that constitutes any CMX network. It is connected on one side to the Gateway GW-00 Subsystem Pad or to the GW-01 asynchronous board and on the other side it communicates with the CMX boards. Due to RS-232 limitations, the IC-2 is usually located near the Gateway; you will find detailed information about cables and connectors in Section 3.2. The CMX are connected to the IC-2 in a multidrop configuration: on each line (i.e. to each IC-2) up to 16 CMXs can be linked. The connection among the CMX in the multidrop configuration guarantees the electrical continuity even if one of the CMX stops operating. No line breakdown can occur in most cases of CMX board failure. The maximum distance between the IC-2 and a CMX board is up to 1200 meters at 9600 baud. The boards can be powered using different power supply units, located near them. To CMX-24O can be connected up to 3 CMX-RB relay output boards and to CMX-16/8 up to 1 CMX-RB can be connected. The connection is implemented using a flat cable supplied with CMX-RB .

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of various models

CMX-PS

GW-0x

From the IC-2 exits an

RS-232 data line that can

be connected to a Gateway

GW-20 or GW-21

SYSTEM DESCRIPTION

CMX-PS

CMX 24O or CMX 16/8 or CMX 24I

IC-2

This multidrop RS-485 data line can run up to 1000 m from the IC-2 till the farthest CMX, at a data transmission speed of 9600 bauds

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up to 16 CMXs

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Fig. 2.1

SYSTEM DESCRIPTION

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THE IC-2 COMMUNICATION INTERFACE

3 The IC-2 Communication interface

The IC-2 appears as a small plastic box that contains the electronics. A green LED on the front panel is lighted when the power is on. The box can be opened exerting pulling the upper side from the lower side; there are no blocking screws.

Fig. 3.1

Inside, the printed circuit board is marked CD95204/B; the only features relevant to the installer are the connector's block and the jumpers (see Fig. 3.2). The following connections are provided:

− RS485 communication line (towards CMX,Westinghouse 422)

− IC-2 power supply

− RS232 communication line (towards Gateway)

The jumpers let you set:

− Baud rate: jumpers A, B, C, D, E, F - refer to Table 3.1.

The RS-232 communication line toward the gateway is a 3-wire connection.

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1 2 3 4 5 6 7

THE IC-2 COMMUNICATION INTERFACE

Local ground screw

Power LED

XTAL

Fig. 3.2

BAUD RATE Jumper

EMI Filters

A B C D E

Baud rate jumpers

300 A 600 B 1200 C 2400 D 4800 E 9600 F

Table 3.1 - IC-2 baud rate settings

The baud rate set on the IC-2 must be the same set on the CMX and on the Gateway's Subsystem Pad. Should they be different, the system will not operate .

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THE IC-2 COMMUNICATION INTERFACE

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THE CMX-24I BOARD

4 The CMX-24I board

The CMX-24I is the CMX board with 24 inputs and no outputs. The CMX-24I is composed of a CPU board (marked CD91201) and an I/O board (marked CD91200), connected together (see Fig. 4.1) for board layout and assembly). The important features to be detected on the CPU board are:

• the reset pushbutton

• the switch block marked SW1

• the switch block marked SW2

Although the CPU board layout is the same for all the CMX models, the boards are configured and operate differently in the three CMX models. The CPU board contains all the hardware and software needed for communications and interfacing. You can easily recognize the big CPU chip, and next to it the quartz crystal (XTAL) in its metal case. If you look at the board with the CPU chip at right, you can detect at the right of the quartz a small black pushbutton. This is the reset pushbutton, that starts the CMX diagnostics routines and reset the field status. This pushbutton has to pressed only when the CMX needs a full restart. When it is pressed, the status of all inputs is re-read.

CPU BOARD

FRONT VIEW

I/O BOARD

I/O 1

I/O 23

TX POWER ON

I/O 2

I/O 24

RX BT

Fig. 4.1

At the right of the CPU chip, at the upper and lower side, there are two switch block, used to set:

− the baud rate (SW2-6, SW2-7, SW2-8) : see Annex A, Table A.1;

− the I/O status (normal/inverted) (SW2-1, SW2-2, SW2-3): see Annex A, Table A.2;

− the board network address (SW1-4, SW1-5, SW1-6, SW1-7, SW1-8) : see Annex A, Table A.3;

− the board type (SW1-1, SW1-2, SW1-3): see Table 4.1.

Five switches on the SW1 are used to set the board address (see Annex A, Table A.3). Five binary switches allow 25 = 32 addresses, but remember that only 16 CMX can actually be addressed on a single communication line. Never use addresses above 15 (0F Hex); the SW1-4 setting must be always ON.

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THE CMX-24I BOARD

The switches SW1-1, SW1-2 and SW1-3 are used to define the board type. For the CMX-24I they must have the setting shown in Table 4.1.

SW1-1 ON SW1-2 ON SW1-3 ON

Table 4.1 - Board type

The switches SW2-1, SW2-2 and SW2-3 are used to define the meaning that the CMX firmware assign to the input status. The meaning is assigned to the inputs in groups of eight, and so 3 switches are enough to define the meaning of 24 inputs. If the switch is set OFF, the eight inputs corresponding to it are evaluated active when they are closed (this condition is stated as "normally open" in Table A.2 in Annex A). If the switch is set ON, the inputs are complemented, i.e. their active status corresponds to the open state (this condition is stated as "normally closed" in Table A.2 in Annex A). In the upper left part of board there are two double jumpers, marked JP1 and JP3. Each one has a "A" jumper and a "B" jumper. Their setting is as follows and must not be changed:

JP1 JP3

A OFF ON B ON OFF

Table 4.2 - JP1 and JP3 settings

The I/O board (CD 91200) of the CMX-24I is able to accept up to 24 inputs. On the board it is easy to recognize the two rows of twelve photocouplers each, the small blocks with four pins, the two LEDS blocks of 24 and 4 LEDs respectively, on the left board side and the DIN 64-pins connector on the right side. The 24 LEDs are linked to the I/O port. When a LED is ON this means that the input is closed at the corresponding input port. Note that the LED signifies only a physical condition (i.e. current flowing through the diode), while the logical meaning of the input is assigned by the switch setting (see Table A.2). Looking frontally to the LEDs rows, the four lower LEDs have the following meaning (Fig. 4.1):

− the upper left is the RS-485 line TX monitor: during normal operation it blinks according to the signals transmitted.

− the upper right is the RS-485 line RX monitor: during normal operation it blinks according to the signals received.

− the lower left is the power supply monitor: it must be steady ON when the CMX is properly powered.

− the lower right is the low voltage monitor: during normal operation it is OFF. It lights on when the power

supply voltage drops below the lower limit of 11.4 V.

The board layout is common with the other CMX models (CMX-24O and CMX-16/8). The CMX-24I however lacks the three IC marked on the PCB as U1, U2 and U3, as well as the related jumpers marked W25, W26 and W27. The only feature that can require a maintenance intervention is the fuse on the I/O board. The fuse is soldered to the board and it is intended for board protection and not for field protection. If the fuse blows out, probably there is something wrong with the board. Send it back to Cerberus Dati for maintenance.

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THE CMX-24I BOARD

Fig. 4.2

Refer to Chapters 8 and 9 of this manual for actual connections of the board to external devices. The power supply must have the characteristics shown in Table 4.3.

Feature Value Unit

Voltage - min 12 V Voltage - max 28 V Current - idle 80 @12 V mA

60 @28 V mA

Current - max 360 @13.8 V mA

420 @27 V mA

Table 4.3 - Power supply characteristics

The inputs can be :

• Open collector

• Dry contacts

Fig. 4.2 shows two of the possible input configurations. Table 4.4 shows the input electrical characteristics.

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