CTI Products IOB I-O Interface User Manual

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MCN Monitoring and Control Network

Comparator Display System

Input/Output Control Module

IOB

Hardware Reference Manual

S2-60630-105

NOTE: This module must be configured before being installed in your system. Refer to section 4 for information about the module configuration.

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FCC Statement

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

DOC Statement

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

Computer Software Copyrights

This manual describes products which include copyrighted CTI Products, Inc. computer programs in semiconductor memory. CTI Products, Inc. reserves all rights for these programs, including the exclusive right to copy or reproduce the copyrighted computer programs in any form. No copyrighted computer program contained in products described in this manual may be copied, reproduced, decompiled, disassembled, or reversed engineered in any manner without express written permission of CTI Products, Inc. The purchase of products from CTI Products, Inc. shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents, or patent applications of CTI Products, Inc., except for the normal nonexclusive, royalty fee license to use that arises by operation of law in the sale of the product.

Information contained in this document is subject to change without notice and does not represent a commitment on the part of CTI Products, Inc.

No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the written permission of CTI Products, Inc.

MCN is a trademark of CTI Products, Inc. Other trademarks referenced are properties of their respective owners.

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IOB Hardware Reference CTI Products, Inc.

Standard Limited Hardware Warranty

LIMITED WARRANTY.

for a period of ONE (1) YEAR from date of shipment to original purchaser. Under this warranty, our obligation is limited to repairing or replacing any equipment proved to be defective by our inspection within one year of sale to the original purchaser. This warranty shall not apply to equipment which has been repaired outside our plant in any way, so as to, in the judgment of CTI Products, Inc. affect its stability or reliability, nor which has been operated in a manner exceeding its specifications, nor which has been altered, defaced, or damaged by lightning.

Equipment manufactured by CTI Products, Inc. is warranted to be free from defects in material and workmanship

CUSTOMER REMEDIES

period shown, the customer shall call CTI Products, Inc. to obtain a Return Authorization Number and return the product or module, shipping and insurance prepaid. CTI Products, Inc., will then at its option, either repair or replace the product or module and return it, shipping prepaid, or refund the purchase price thereof. On-site labor at the purchaser's location is not included in this warranty.

EQUIPMENT NOT MANUFACTURED BY CTI Products, Inc.

warranty, but is subject to the warranty provided by its manufacturer, a copy of which will be supplied to you upon specific written request.

NO OTHER WARRANTIES.

Inc., AND IS IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED OR IMPLIED OR STATUTORY AS TO MERCHANTABILITY, FITNESS FOR PURPOSE SOLD, DESCRIPTION, QUALITY, PRODUCTIVENESS OR ANY OTHER MATTER.

NO LIABILITY FOR CONSEQUENTIAL DAMAGES.

PRODUCTS, INC. OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR INABILITY TO USE CTI PRODUCTS, INC. EQUIPMENT BY PURCHASER OR OTHER THIRD PARTY, WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), INDEMNITY, PRODUCT LIABILITY OR OTHERWISE, EVEN IF CTI PRODUCTS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR LOSSES. IN NO EVENT SHALL CTI PRODUCTS, INC.’S, LIABILITY EXCEED THE TOTAL AMOUNT PAID BY PURCHASER FOR THE EQUIPMENT GIVING RISE TO SUCH LIABILITY.

. In the event of a defect, malfunction, or failure to conform to specifications established by the seller during the

Equipment not manufactured by CTI Products, Inc. is excluded from this

The foregoing constitutes the sole and exclusive remedy of the buyer and exclusive liability of CTI Products,

WITHOUT LIMITING THE FOREGOING, IN NO EVENT SHALL CTI

68-11168-105

IOB Hardware Reference CTI Products, Inc.

CTI Products, Inc.

1211 W. Sharon Rd.

Cincinnati, OH 45240

If you have questions about the MCN system, call us at:

(513) 595-5900. (8:30 to 5:00 Eastern)

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IOB Hardware Reference CTI Products, Inc.

1. INTRODUCTION......................................................................................................... 1

1.1 R

EFERENCE DOCUMENTS

............................................................................................... 1

2. SPECIFICATIONS....................................................................................................... 2

3. THEORY OF OPERATION........................................................................................ 4

3.1 C

ONTROLLING THE

I/O ................................................................................................... 4

3.1.1 Input Monitoring - I/O Groups and I/O Bits........................................................... 4

3.1.2 Output Control........................................................................................................ 7

3.2 M

3.3 M

3.4 M

3.5 M

3.6 C

1 - G

ODE

USTOM STATUS TEXT SUB-CATEGORIES

ENERAL PURPOSE

2 - T

WO SETS OF 1 OF

3 - O

NE SET OF 1 OF

4 - O

NE SET OF 1 OF

I/O - 16 O

4 S

ELECT OUTPUT

4 S

ELECT OUTPUTS

8 S

ELECT OUTPUTS

UTPUTS

........................................................... 8

............................................................ 8

............................................................. 9

.................................................................... 10

4. OPTION SWITCHES AND JUMPERS ................................................................... 14

5. CONNECTORS........................................................................................................... 17

6. MOUNTING ................................................................................................................ 20

7. SYSTEM EXAMPLES ............................................................................................... 21

7.1 G

ENERAL PURPOSE

7.2 O

NE OF FOUR SELECT

7.3 I

NVERTED SELECT

7.4 SUB-

CATEGORY EXAMPLE

I/O E

A E

XAMPLE

I/O E

XAMPLE

................................................................................ 21

XAMPLE

............................................................................ 23

................................................................................... 25

............................................................................................ 26

8. TROUBLESHOOTING ............................................................................................. 28

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iii

IOB Hardware Reference Introduction CTI Products, Inc.

1. Introduction

The Input/Output Control (IOB) is a member of the Monitoring and Control Network (MCN™) family of auxiliary modules. Hardware specifications, system examples, and configuration information are provided in this manual.

The IOB module connects I/O devices (such as relays) to the MCN network. The IOB is used with a User Interface Module (such as a HIB) to create an I/O control system.

PRODUCTS, INC.

OUTNETWORK

DC IN

ERR

PWR

MODULEGROUP

1234

OPTION

Figure 1 - IOB Front and Rear View

1.1 Reference Documents

1. Monitoring and Control Network System Manual Part Number S2-60425

2. Monitoring and Control Network Remote Comparator Display Software Part Number S2-60428

ACT

RESET

E1 A

E1 B

CA-80023-100

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IOB Hardware Reference Specifications CTI Products, Inc.

2. Specifications

Size 5.5” x 4.2” x 1.5” (140 x 107 x 38 mm) Weight 16 oz (455 gm) Temperature 0 - 50 ºC Humidity 10 - 95% non-condensing Module Power 10 - 32 Vdc / 2 Watts max. Number of Input Points 32 max (depending on the operating mode) Number of Output Points 16 max (depending on the operating mode) Open Circuit Voltage (all I/O pins) jumper E1B removed jumper E1B installed Input Voltage (Input pins) -0.6 to 30 Vdc (max) Input Current (Input pins): jumper E1B removed (Vin = 0 Vdc) jumper E1B installed (Vin = 0 Vdc) Output Saturation Voltage (Output pins) with Iout = 100 mA Output Pin Current (Output pins) 150 mA max per individual pin (sink)

Power Dissipation 2 Watts Nominal Input/Output Connection 50 pin Telco style Network Connector (2) RJ-45 (1 in, 1 out) Safety Approvals UL 1950

Emissions Compliance FCC Part 15, Class A

Susceptibility Compliance IEC 801-2

+13.8 Vdc nominal +5 Vdc nominal

-720 µA max (source)

-270 µA max (source) 550 mV

100 mA max per pin if all outputs are ON.

CSA 1950 EN 60950-1992

DOC Class A EN55022

IEC 801-3 IEC 801-4 EN50082-1

Table 1 - Module Specifications

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IOB Hardware Reference Specifications

CTI Products, Inc.

Figure 2 shows the equivalent circuits of the IOB I/O pins. The pull-up voltage Vp by jumper E1B, located on the rear of the module.

• Vp = 13.8 Vdc with jumper E1B out

• Vp = 5.0 Vdc with jumper E1B in

+5V

HCMOS

INPUT

+5V

150K

180K

INPUT

22K

ESD

PROTECTION

0.1uF

22K

PROTECTION

0.1uF

ESD

30V TRANSORB

OUTPUT

22K

+5V

HCMOS

INPUT

150K

0.1uF

INPUT/OUTPUT

Figure 2 - I/O Equivalent Circuit

ESD

PROTECTION

30V TRANSORB

CA-80043-100

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

3. Theory of Operation

This section describes the operation of the IOB module in an I/O control system. This module can operate in one of four different modes:

I/O Group Mode 1 Mode 2 Mode 3 Mode 4

1 2 1 of 4 Select 1 of 4 Select 3# 1 4 Independent 1 of 8 Select 5I/O 6 1 of 4 Select Independent 7# 2I/O 8

The operating mode is set using the OPTION switches on the module’s front panel. Refer to section 4 for a description of the mode setting switches and section 5 for a pinout of the IOB’s I/O connector. The functions of the I/O connector pins on the rear of the module change depending on the IOB’s operating mode.

Each operating mode is discussed in the following sections.

3.1 Controlling the I/O

The MCN HIB module, along with the MCNRCD Remote Comparator Display program, provides a PC based user interface for the IOB module. Output points on the IOB can be controlled by either the PC keyboard or mouse. Input points can be monitored on the screen.

In order to have the MCNRCD software display meaningful I/O status messages, custom status text categories and custom status messages must be created for your specific I/O application (see the appendix titled the Monitoring and Control Network Remote Comparator Display Software Manual (reference 2) for details about creating custom status messages). These custom status messages are defined in the file MCNRCD.CFG.

Section 7 provides a number of examples that show how to customize the MCNRCD display for an IOB module.

3.1.1

Input Monitoring - I/O Groups and I/O Bits

With the MCNRCD software, a single display position on the screen does not represent a single I/O point. Instead, each display position represents the state of four I/O points. We refer to the four I/O points that make up a screen display position as an I/O group (this is similar to the 4 bits, Vote Rx, Disable, and Fail associated with a receiver in comparator applications using a CIB module).

Changing Status Message Text

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

An IOB has 8 I/O groups (similar to the 8 receivers per CIB module). Since each I/O group is represented by four I/O points, a maximum of 32 I/O points can be displayed per IOB. When configuring your MCNRCD screens for IOB modules, know that each I/O group is related to an Rx # in the MCNRCD and MCNCFG software. I/O group 1 is the same as Rx # 1 and so on through I/O group 8 is the same as Rx # 8.

The basic IOB module is setup as 8 I/O groups. Each I/O group has the following 4 I/O lines:

I/O Bit

Type Status Byte

Binary Weight

MCNRCD Input

Status Signal

Output Controlled By

1 Input/Output 01 hex VOTE left mouse button or “V” 2 Input 04 hex RECEIVE N/A 3 Input/Output 10 hex DISABLE right mouse button or “D” 4 Input 40 hex FAIL N/A

Table 2 - I/O Point Binary Weight

Table 2 shows the binary weight of each I/O bit. These binary weights are summed to create the input value fields of the MCNRCD.CFG text definition line. This allows you to display up to 16 status message values for each I/O group (receiver) on the MCNRCD screen. All valid combinations of these binary weights must be defined by separate text definition lines (again, see the appendix

Changing Status Message Text

titled

in the Monitoring and Control Network Remote Comparator Display Software Manual (reference 2) for details about creating custom status messages). Table 3 shows the possible combinations of the binary weights (in the Input Value Field column) and the I/O bit combinations for that value. A column has also been provided for you to enter the text corresponding to the input value field.

In the 1 or 4 and 1 of 8 select configurations, the output for I/O bit 3 is disabled (only the output for I/O bit 1 can be used).

In all cases, any pin not used as an output can be used as an input. Inputs can be dynamic inputs used to sense on and off conditions or can be static “selector” inputs which are permanently strapped to provide a selector function for subcategories.

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

Input Value

Field

Active I/O Bit Combinations

00 01 1 04 2 05 2 + 1 10 3 11 3 + 1 14 3 + 2 15 3 + 2 + 1 40 4 41 4 + 1 44 4 + 2 45 4 + 2 + 1 50 4 + 3 51 4 + 3 + 1 54 4 + 3 + 2 55 4 + 3 + 2 + 1

Table 3 - Input Value Definitions

Custom

Text

Note: The IOB’s inputs and outputs are active low. Therefore, for a I/O bit to be active, it must be pulled to ground. Also, when an output is active, it is driven low by the IOB.

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

3.1.2

Output Control

As stated earlier in this section, the output points of the IOB module can be controlled by both the mouse and keyboard. Table 4 shows which I/O bits are controlled by the specific mouse or keyboard buttons. To control the I/O bit, simply move the cursor over the I/O group that represents the I/O bit and click the proper mouse button or press the proper keyboard button. The IOB output point will change state. The IOB uses the input of the input/output point to automatically generate feedback to the MCNRCD software so that the new state of the output is displayed. When using a input/output point as an output, do not attach any circuitry that can drive the pin. The keyboard and mouse controls can be setup to provide either a latched output or a momentary output, depending upon the setting of the VOTE= and DISABLE= definition lines for the MCNRCD.CFG category you created. Refer to the appendix titled

Status Message Text

in the Monitoring and Control Network Remote Comparator

Changing

Display Software Manual (reference 2) for details about configuring the button control.

I/O

Bit

Mouse Control

Keyboard Control

1 left button V key 3 right button D key

Table 4 - Output Controls

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

3.2 Mode 1 - General Purpose I/O - 16 Outputs

In general purpose I/O mode, the IOB module provides 16 input/output lines and 16 input only lines. Table 16 shows the pinout for this mode as well as the I/O group and I/O bit number associated with each connector pin.

3.3 Mode 2 - Two Sets of 1 of 4 Select Output

In this mode, the IOB provides two sets of 1 of 4 Select output lines and 24 input only lines. Table 16 shows the pinout for this mode as well as the I/O group and I/O bit number associated with each connector pin.

Table 5 shows how the 1 of 4 Select outputs operate, allowing only one active output in each set of 4 Select lines (A, B, C and D). Remember, the outputs are active low so the output pin for the selected output is low and the output pins of the other select outputs are high.

Select 1 or Select 2

A B C D

1 0 0 0 Select A 0 1 0 0 Select B 0 0 1 0 Select C 0 0 0 1 Select D

Table 5 - 1 of 4 Select Operation

Note: In this table, any output shown as a 0 is a high output and any output shown as a 1 is low output.

The IOB has the option to invert the Select A output so that the Select A output pin is active high and the Select B, C and D output pins are active low. This operation is shown in Table 6. The Select A invert option is selected with OPTION switch position 3 (see section 4).

Select 1 or Select 2

A B C D

0 0 0 0 Select A 1 1 0 0 Select B 1 0 1 0 Select C 1 0 0 1 Select D

selected

output

selected

output

Table 6 - Inverted Select A Operation

Note: In this table, any output shown as a 0 is a high output and any output shown as a 1 is low output.

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

This option is typically used when you need 1 of 4 relays that will operate in a fail-safe mode when the power fails. For instance, you can drive 4 DPDT relays to provide a 1 of 4 manual transmitter selection circuit. Transmitters 2 through 4 would be connected to the normally open relay contacts, while transmitter 1 would be connected to the normally closed contacts. If the power fails, the system will revert to transmitter 1.

3.4 Mode 3 - One Set of 1 of 4 Select Outputs + 8 Independent Outputs

In this mode, the IOB provides one bank of 1 of 4 Select output lines, 8 input/output lines and 20 input only lines. Table 16 shows the pinout for this mode as well as the I/O group and I/O bit number associated with each connector pin.

The first 4 I/O groups are used as 1 of 4. I/O groups 5 through 8 are independent I/Os. The operation of the first 4 I/O groups is the same as Mode 2.

3.5 Mode 4 - One Set of 1 of 8 Select Outputs

In this mode, the IOB provides a 1 of 8 Select output and 24 input only lines. Table 16 shows the pinout for this mode as well as the I/O group and I/O bit number associated with each connector pin.

Table 7 shows how the 1 of 8 Select outputs operate, allowing only one active output in each the of 8 Select lines (A through H).

Select

A B C D E F G H

1 0 0 0 0 0 0 0 Select A 0 1 0 0 0 0 0 0 Select B 0 0 1 0 0 0 0 0 Select C 0 0 0 1 0 0 0 0 Select D 0 0 0 0 1 0 0 0 Select E 0 0 0 0 0 1 0 0 Select F 0 0 0 0 0 0 1 0 Select G 0 0 0 0 0 0 0 1 Select H

Table 7 - 1 of 8 Select Operation

selected output

Note: In this table, any output shown as a 0 is a high output and any output shown as a 1 is low output.

The IOB has the option to invert the Select A output so that the Select A output pin is active high and the Select B, C and D output pins are active low. This

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

operation is shown in Table 8. The Select A invert option is selected with OPTION switch position 3 (see section 4).

Select

A B C D E F G H

0 0 0 0 0 0 0 0 Select A 1 1 0 0 0 0 0 0 Select B 1 0 1 0 0 0 0 0 Select C 1 0 0 1 0 0 0 0 Select D 1 0 0 0 1 0 0 0 Select E 1 0 0 0 0 1 0 0 Select F 1 0 0 0 0 0 1 0 Select G 1 0 0 0 0 0 0 1 Select H

Table 8 - Inverted Select A Operation

Note: In this table, any output shown as a 0 is a high output and any output shown as a 1 is low output.

This can be used to drive fail-safe relays as described in Mode 2.

3.6 Custom Status Text Sub-categories

It is possible to connect different types of I/O devices (like main/standby relays and lighting control) to a single IOB module. This is done by creating subcategories within a single category in the MCNRCD.CFG file. To create a subcategory, you need to reserve one or more of the input signals in each I/O group of the IOB module for the sub-category selector. These reserved bits are then either left floating or strapped to ground to define the possible sub-categories. The appendix titled Network Remote Comparator Display Software Manual (reference 2) has additional information about sub-categories.

Changing Status Message Text

in the Monitoring and Control

selected

output

When you reserve an input signal for a sub-category selector, you are also reserving the I/O bit associated with that input signal. The reserved I/O bits are then used to define the sub-categories in the MCNRCD.CFG file. The following sections show how the multiple sub-categories can be created by reserved 1, 2 or 3 I/O bits for the sub-category selector.

Section 7.4 has a system example that defines two sub-categories.

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

Creating Two Sub-categories

To create two sub-categories, one I/O bit must be reserved for the sub-category selector. In Table 9, I/O bit 4 has been reserved for the sub-category selector. You can see from the table that there are eight possible status messages that can be defined for each sub-category. Because I/O bit 4 has been reserved as the selector, all IOB pins that correspond to I/O bit 4 cannot be used by application circuitry.

Sub-category

Input Value

Field

Sub-

Table 9 - 2 Sub-categories / 8 States

Note: In this table, any I/O bit shown as a 0 is a floating input or a high output and any I/O bit shown as a 1 is an input tied to ground or a low output.

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

Creating Four Sub-categories

To create four sub-categories (for four different I/O types), two I/O bits must be reserved for the sub-category selector. In Table 10, I/O bits 3 and 4 have been reserved for the sub-category selector. You can see from the table that there are four possible status messages that can be defined for each sub-category. Because I/O bits 3 and 4 have been reserved as the selector, all IOB pins that correspond to I/O bits 3 and 4 in all I/O groups cannot be used by application circuitry.

Warning: Because I/O bit 3 is used as a sub-category selector, you must make sure that the mouse and keyboard button cannot change the state of the I/O pins corresponding to I/O bit 3. Therefore, in your category definition, make sure the

DISABLE=x line state the following:

DISABLE=O

This line will turn off the right mouse button and the ‘D’ keyboard key so that I/O bit 3 cannot be controlled from the keyboard.

Sub-category

Input Value

Field

Sub-

Table 10 - 4 Sub-categories / 4 States

Note: In this table, any I/O bit shown as a 0 is a floating input or a high output and any I/O bit shown as a 1 is an input tied to ground or a low output.

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IOB Hardware Reference Theory of Operation CTI Products, Inc.

Creating Eight Sub-categories

To create eight sub-categories, three I/O bits must be reserved for the sub-category selector. In Table 10, I/O bits 2, 3 and 4 have been reserved for the sub-category selector. You can see from the table that there are two possible status messages that can be defined for each sub-category. Because I/O bits 2, 3 and 4 have been reserved as the selector, all IOB pins that correspond to I/O bits 2, 3 and 4 cannot be used by application circuitry.

DISABLE=x line state the following:

DISABLE=O

This line will turn off the right mouse button and the ‘D’ keyboard key so that I/O bit 3 cannot be controlled from the keyboard.

Input Value

Field

Sub-

Table 11 - 8 Sub-categories / 2 States

Note: In this table, any I/O bit shown as a 0 is a floating input or a high output and any I/O bit shown as a 1 is an input tied to ground or a low output.

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IOB Hardware Reference Option Switches and Jumpers CTI Products, Inc.

4. Option Switches and Jumpers

Three sets of option switches are provided for module configuration. The module must be power cycled or reset after these switches are set so that the options will take effect. Table 12 describes the option switches and shows the factory defaults.

SWITCH DESCRIPTION DEFAULT

GROUP Unit Address Setting

refer to the MCN System Manual

MODULE Unit Address Setting

refer to the MCN System Manual OPTION position 1 Mode Select 1 (see Table 13) DOWN position 2 Mode Select 2 (see Table 13) DOWN position 3 Select A Invert DOWN position 4 I/O Scan Rate Select DOWN

Table 12 - IOB Option Switches

The Group and Module selector switches are used to set the unit address during module installation. Refer to reference 1, the Monitoring and Control Network System Manual, for details about setting these switches.

The mode select switches (OPTION switch positions 1 and 2) set the operating mode of the IOB. Refer to section 3 for a description of the various operating modes available. Table 13 provides for a description of these switches.

Option Switch Position 1 2

DOWN DOWN 1 General I/O UP DOWN 2 2 sets of 1 of 4 Select Outputs DOWN UP 3 1 set of 1 of 4 Select Outputs + 8

UP UP 4 1 set of 1 of 8 Select Outputs

Table 13 - IOB Operating Mode Selector Switches

Mode Number Selected Mode

Independent Outputs

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IOB Hardware Reference Option Switches and Jumpers CTI Products, Inc.

The Select A Invert switch (OPTION switch position 3) is only used when operating modes 2, 3 or 4 are selected (in mode 1, this switch is not used). The switch is defined as:

Option Switch 3 Function

DOWN Inverted Select A Outputs (active low) UP Normal Select A Outputs (active high)

This switch only affects the Select A output lines. All other Select output lines are active low. Refer to section 3 for a discussion of each operating mode.

The I/O Scan Rate Select switch (OPTION switch position 4) is used to select the I/O scan rate for the IOB module. The switch is defined as:

Option Switch 4 Function

DOWN Normal scan rate (3 times per second) UP Fast scan rate (10 times per second)

The default position for this switch is DOWN, selecting an I/O scan rate of 3 times per second. For special applications, you may want to increase the scan rate to the fast scan rate (10 scans of the I/O per second). This allows the IOB module to detect inputs that are changing more than 3 times per second. The disadvantage of using the fast scan rate is that the IOB module can generate more network traffic since it will transmit a network message every time it detects an input change. With the fast scan rate selected, the IOB module could generate 10 messages per second, instead of 3 messages per second when using the normal scan rate. If an IOB module is generating more than 3 messages per second, you may see overall system performance problems (such as slower system response or missed events on other MCN modules) because other MCN modules may not be able to communicate over the network as often. Therefore, if you have IOBs in your system that are set to the fast scan rate, and you begin to experience slow system response or missed events on other MCN modules, you will have to change your IOBs to normal scan rate.

Jumper Options

Figure 3 shows the configuration of the two jumper options available on the rear of the IOB. These jumpers should be installed at system installation time with power removed from the IOB.

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IOB Hardware Reference Option Switches and Jumpers CTI Products, Inc.

E1 A

E1 B

CA-80024-100

Figure 3 - Jumper Options

Jumper E1A is located across the top 2 terminals of the 6 pin terminal block. This jumper is reserved and should not be installed.

Jumper E1B is located across the left side middle and bottom terminals of the 6 pin terminal block. Set this jumper to match the needs of your I/O system.

The remaining 2 terminals of the block are unused.

Jumper Function Default

E1A Reserved OUT E1B Vp Set

In for inputs pulled up to +5 Vdc. Out for inputs pulled up to +13.8 Vdc.

OUT

Table 14 - Jumper Definitions

Because most installations require the pull-up voltage to be +13.8 Vdc, no jumper is provided with the unit for the E1B jumper terminals. If you have an application that requires the pull-up voltage to be set to +5 Vdc, you can order an additional jumper by calling CTI Products Inc. and ordering part number 27-10351.

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IOB Hardware Reference Connectors CTI Products, Inc.

5. Connectors

The NETWORK IN/OUT ports on the front of the IOB are used to connect the IOB with other MCN modules. These ports carry both the network data signals as well as DC power for power distribution with other modules. . Table 15 gives the pinout for these connectors. Figure 4 shows the location of pin 1 for each port.

PRODUCTS, INC.

NETWORK

PIN 1

OUT

DC IN

CA-80068-100

Figure 4 - Network IN/OUT Ports

Pin Function

1 DATA + 2 DATA 3+ POWER 4 No Connect 5 No Connect 6- POWER 7- POWER 8+ POWER

Table 15 - Network Connector Pinout

The DC IN port provides the primary power connection to the module. Power is distributed through the NETWORK OUT connector to provide power to the NETWORK IN connector of the MCN unit it is connected to. Each power supply can power up to four units total. See the Monitoring and Control Network System Manual (reference 1) for complete details of connections to the network and DC IN connectors.

Connector J1 provides the discrete I/O points. The pin definitions for this connector change, depending upon which operating mode the IOB module is set for. Table 16 gives the pin numbers and their definitions for each mode. The column labeled I/O bit includes, in parenthesis, the MCNRCD name associated with the bit number. Table 17 gives this same information, but the order of the IOB pin numbers matching a punch block pinout. See the appendix titled

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IOB Hardware Reference Connectors CTI Products, Inc.

Changing Status Message Text

in the Monitoring and Control Network Remote Comparator Display Software Manual (reference 2) for more information about custom text messages.

Mode 1

IOB

21 input/output 1 Select 1A output Select 1A output Select 1A output 1 1 (VOTE) 46 input/output 2 Select 1B output Select 1B output Select 1B output 2 1 (VOTE) 15 input/output 3 Select 1C output Select 1C output Select 1C output 3 1 (VOTE) 40 input/output 4 Select 1D output Select 1D output Select 1D output 4 1 (VOTE)

9 input/output 5 Select 2A output input/output 5 Select 1E output 5 1 (VOTE)

34 input/output 6 Select 2B output input/output 6 Select 1F output 6 1 (VOTE)

3 input/output 7 Select 2C output input/output 7 Select 1G output 7 1 (VOTE) 28 input/output 8 Select 2D output input/output 8 Select 1H output 8 1 (VOTE) 22 input 1 input 1 input 1 input 1 1 2 (RECEIVE) 47 input 2 input 2 input 2 input 2 2 2 (RECEIVE) 16 input 3 input 3 input 3 input 3 3 2 (RECEIVE) 41 input 4 input 4 input 4 input 4 4 2 (RECEIVE) 10 input 5 input 5 input 5 input 5 5 2 (RECEIVE) 35 input 6 input 6 input 6 input 6 6 2 (RECEIVE)

4 input 7 input 7 input 7 input 7 7 2 (RECEIVE) 29 input 8 input 8 input 8 input 8 8 2 (RECEIVE) 20 input/output 9 input/output 9 * input/output 9 * input/output 9 * 1 3 (DISABLE) 45 input/output 10 input/output 10 * input/output 10 * input/output 10 * 2 3 (DISABLE) 14 input/output 11 input/output 11 * input/output 11 * input/output 11 * 3 3 (DISABLE) 39 input/output 12 input/output 12 * input/output 12 * input/output 12 * 4 3 (DISABLE)

8 input/output 13 input/output 13 * input/output 13 input/output 13 * 5 3 (DISABLE) 33 input/output 14 input/output 14 * input/output 14 input/output 14 * 6 3 (DISABLE)

2 input/output 15 input/output 15 * input/output 15 input/output 15 * 7 3 (DISABLE) 27 input/output 16 input/output 16 * input/output 16 input/output 16 * 8 3 (DISABLE) 23 input 9 input 9 input 9 input 9 1 4 (FAIL) 48 input 10 input 10 input 10 input 10 2 4 (FAIL) 17 input 11 input 11 input 11 input 11 3 4 (FAIL) 42 input 12 input 12 input 12 input 12 4 4 (FAIL) 11 input 13 input 13 input 13 input 13 5 4 (FAIL) 36 input 14 input 14 input 14 input 14 6 4 (FAIL)

5 input 15 input 15 input 15 input 15 7 4 (FAIL) 30 input 16 input 16 input 16 input 16 8 4 (FAIL)

1 Ground Ground Ground Ground

(32) General Purpose I/O

Mode 2

(2) One-of-Four

Select Outputs

Mode 3

(1) One-of-Four

Select Outputs +

8 Independent

Outputs

Mode 4

One of Eight

Select Outputs

I/O

Group #

I/O Bit #

Table 16 - Connector J1 Pinout

* These pins are treated as “input only” when in the specific mode. The output

control of these pins has been disabled.

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IOB Hardware Reference Connectors CTI Products, Inc.

IOB

1 Ground Ground Ground Ground

27 input/output 16 input/output 16 * input/output 16 input/output 16 * 8 3 (DISABLE)

2 input/output 15 input/output 15 * input/output 15 input/output 15 * 7 3 (DISABLE)

28 input/output 8 Select 2D output input/output 8 Select 1H output 8 1 (VOTE)

3 input/output 7 Select 2C output input/output 7 Select 1G output 7 1 (VOTE)

29 input 8 input 8 input 8 input 8 8 2 (RECEIVE)

4 input 7 input 7 input 7 input 7 7 2 (RECEIVE)

30 input 16 input 16 input 16 input 16 8 4 (FAIL)

5 input 15 input 15 input 15 input 15 7 4 (FAIL)

33 input/output 14 input/output 14 * input/output 14 input/output 14 * 6 3 (DISABLE)

8 input/output 13 input/output 13 * input/output 13 input/output 13 * 5 3 (DISABLE)

34 input/output 6 Select 2B output input/output 6 Select 1F output 6 1 (VOTE)

9 input/output 5 Select 2A output input/output 5 Select 1E output 5 1 (VOTE)

35 input 6 input 6 input 6 input 6 6 2 (RECEIVE) 10 input 5 input 5 input 5 input 5 5 2 (RECEIVE) 36 input 14 input 14 input 14 input 14 6 4 (FAIL) 11 input 13 input 13 input 13 input 13 5 4 (FAIL) 37 12 38 13 39 input/output 12 input/output 12 * input/output 12 * input/output 12 * 4 3 (DISABLE) 14 input/output 11 input/output 11 * input/output 11 * input/output 11 * 3 3 (DISABLE) 40 input/output 4 Select 1D output Select 1D output Select 1D output 4 1 (VOTE) 15 input/output 3 Select 1C output Select 1C output Select 1C output 3 1 (VOTE) 41 input 4 input 4 input 4 input 4 4 2 (RECEIVE) 16 input 3 input 3 input 3 input 3 3 2 (RECEIVE) 42 input 12 input 12 input 12 input 12 4 4 (FAIL) 17 input 11 input 11 input 11 input 11 3 4 (FAIL) 43 18 44 19 45 input/output 10 input/output 10 * input/output 10 * input/output 10 * 2 3 (DISABLE) 20 input/output 9 input/output 9 * input/output 9 * input/output 9 * 1 3 (DISABLE) 46 input/output 2 Select 1B output Select 1B output Select 1B output 2 1 (VOTE) 21 input/output 1 Select 1A output Select 1A output Select 1A output 1 1 (VOTE) 47 input 2 input 2 input 2 input 2 2 2 (RECEIVE) 22 input 1 input 1 input 1 input 1 1 2 (RECEIVE) 48 input 10 input 10 input 10 input 10 2 4 (FAIL) 23 input 9 input 9 input 9 input 9 1 4 (FAIL) 49 24 50 25

Mode 1 Mode 2 Mode 3 Mode 4 I/O Group

I/O Bit #

Table 17 - Connector J1 Pinout in Punch Block Order

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IOB Hardware Reference Mounting CTI Products, Inc.

6. Mounting

Refer to the Monitoring and Control Network System Manual (reference 1), section

Make sure that any mounting screws used to secure unit to a bracket do not protrude into the unit’s enclosure more than 1/8 inches from the bottom surface of the unit.

Using a larger screw that touches the pc board inside the unit may damage the unit when it is powered. Doing so will void the unit’s warranty.

Mounting Options,

for details about mounting the IOB module.

CAUTION

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IOB Hardware Reference System Examples CTI Products, Inc.

7. System Examples

This section contains various examples that describe the different operating modes of the IOB module.

7.1 General Purpose I/O Example

Figure 5 shows a general purpose I/O system that is monitored from a local PC.

USER APPLICATIONIOB

CIRCUIT

I/O BIT

CIRCUIT

(OUTPUT)

(INPUT)

(OUTPUT)

(INPUT)

CA-80277-100

I/O GROUP

1-8

RUN

ACTIVE

STEP

FAIL

Figure 5 - I/O Group Configuration

For this application, we will need to create a custom status text category in the MCNRCD.CFG file so that the MCNRCD software can display meaningful status messages. Before editing the MCNRCD.CFG file, we need to define our custom text messages. Table 18 shows the functions for each I/O bit.

I/O Bit # Function Binary Weight

1 Run 01 hex 2 Active 04 hex 3 Step 10 hex 4 Fail 40 hex

Table 18 - Example System Text Definition

Next we need to create a custom text table for all possible input value field combinations. Table 19 shows the custom text messages and the corresponding input value fields.

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Input Value

Field

Active I/O Bit Combinations

Custom

Text

00 01 1 Run 04 2 Active 05 2 + 1 Run/Act 10 3 Step 11 3 + 1 Run/Step 14 3 + 2 Step/Act 15 3 + 2 + 1 Run/Act 40 4 Fail 41 4 + 1 Fail/Run 44 4 + 2 Fail 45 4 + 2 + 1 Fail/Run 50 4 + 3 Fail/Step 51 4 + 3 + 1 Fail 54 4 + 3 + 2 Fail/Step 55 4 + 3 + 2 + 1 Fail

Table 19 - Custom Text for General I/O System

From this table we can now create our custom status text category in the MCNRCD.CFG file. Refer to the appendix in the Monitoring and Control Network Remote Comparator Display Software Manual (reference 2) titled

Changing Status Message Text

for details about the format of the MCNRCD.CFG

file.

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7.2 One of Four Select I/O Example

Figure 6 shows an I/O system that uses the IOB in 1 of 4 Select mode. The four Select outputs are connected to relay controls and the four PTT inputs are connected to input pins of the IOB.

LOCAL PC

COM 2

COM 1

HIB

P/S

OUT

IOB

CIRCUIT

USER APPLICATIONIOB

CIRCUIT

TX 1 SELECT

TX 2 SELECT

TX 3 SELECT

TX 4 SELECT

PTT1

PTT2

PTT3

PTT4

CA-80258-100

Figure 6 - 1 of 4 Select System Example

Just as in the previous example, we need to create a custom status text category for this IOB. Before creating the status text messages, we should look at how each I/O group will be configured. Figure 7 shows the I/O bit configuration for each of the four I/O groups being used.

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IOB Hardware Reference System Examples CTI Products, Inc.

USER APPLICATION

CIRCUIT

TX SELECT

PTT

NO CONNECT

(OUTPUT)

(INPUT)

CA-80276-100

I/O GROUP

1-4

IOB

CIRCUIT

I/O BIT

Figure 7 - 1 of 4 Select I/O Bit Configuration (Tx Select and PTT)

From the figure, you can see that relay control lines are connected to the Select 1A through D outputs of the IOB. These outputs correspond to I/O bit 1 of I/O groups 1 through 4 . The PTT inputs are connected to four input lines of the IOB, which correspond to I/O group bits 2 (RECEIVE) and 4 (FAIL) of I/O groups 5 through 8.

Before editing the MCNRCD.CFG file, we need to define our custom text messages. Let’s define the status messages for the active Select output line to be the text Active and the status messages for the active input lines to be Tx. Now we can create a custom text table for all possible input value field combinations. Table 20 shows the custom text messages and the corresponding input value fields.

Input Value

Field

Active I/O Bit Combinations

Custom

Text

00 01 1 Active 04 2 Tx 05 1 + 2 Act/Tx

Table 20 - 1 of 4 Select Example Custom Text

Changing Status Message Text

for details about the format of the MCNRCD.CFG

file.

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IOB Hardware Reference System Examples CTI Products, Inc.

7.3 Inverted Select A Example

For this example, assume we have the same system as in section 7.2, but we need to changed the system so that the TX 1 Select relay is normally closed (so that if the power fails, the TX 1 Select relay will be engaged). Figure 8 shows this modified system drawing.

LOCAL PC

COM 2

COM 1

HIB

P/S

OUT

IOB

Figure 8 - Inverted Select A Example

IOB

CIRCUIT

USER APPLICATION

CIRCUIT

TX 1 SELECT

TX 2 SELECT

TX 3 SELECT

TX 4 SELECT

CA-80223-100

PTT1

PTT2

PTT3

PTT4

Because the Select 1A output is connected to a normally closed relay, we need the Select 1A output to operate as an active high output instead of active low. The Select 1A output should be high when the Select 1A output is not the selected output and low when the Select 1A output is the selected output. The OPTION switch position 3 needs to be placed in the UP position to enable the inverted Select A output mode (the module must be reset or power cycled after the switch is changed).

The system in Figure 8 operates the same as the system in section 7.2

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IOB Hardware Reference System Examples CTI Products, Inc.

7.4 Sub-category Example

Figure 9 shows a system that uses a single IOB module to monitor two different types of input devices. One set of input devices are alarm input and the other set of input devices are control inputs.

Because the IOB is monitoring two different input device types, we need to divide the IOB’s status text category in the MCNRCD.CFG file into two sub-categories so that meaningful status messages can be displayed for either type of input device. Before defining our custom text messages, let’s look at the configurations for the two I/O groups. This is shown in Figure 9.

USER APPLICATIONIOB

CIRCUIT

I/O BIT

CIRCUIT

ALARM

I/O GROUP

CONTROL

I/O GROUP

I/O BIT

ALARM

ACTIVE

FAIL

NO CONNECT

OFF

FULL

SUB-CATEGORY SELECTOR BIT

Figure 9 - Alarm and Control I/O Group Configurations

SUB-CATEGORY SELECTOR BIT

CA-80275-100

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IOB Hardware Reference System Examples CTI Products, Inc.

Since there are two sub-categories defined in this system, we need to reserve one of the I/O bits for the sub-category selector. Figure 9 shows that I/O bit 4 (FAIL) is reserved for the sub-category selector. Because I/O bit 4 is reserved, we cannot use any IOB I/O pins that correspond to I/O bit 4 (see Table 16) as general purpose I/O pins. Table 21 shows how the sub-category selector bit operates.

I/O Bit 4 Sub-category

0Alarm 1 Control

Table 21 - Sub-category Selection

When I/O bit 4 is inactive (the input is floating), the Alarm sub-category text is selected and when it is active (the input is tied to ground), the Control subcategory is selected.

Using the I/O group definitions shown in Figure 9, we can create a custom text table for all possible input value field combinations. Table 22 shows the custom text messages and the corresponding input value fields.

Input Value

Field

Active I/O Bit Combinations

Custom

Text

00 01 1 Alarm 04 2 Active 05 2 + 1 Act/Alrm 10 3 Fail 11 3 + 1 Fail 14 3 + 2 Fail 15 3 + 2 + 1 Fail 40 4 41 4 + 1 On 44 4 + 2 Off 45 4 + 2 + 1 Error 50 4 + 3 Full 51 4 + 3 + 1 Full/On 54 4 + 3 + 2 Full/Off 55 4 + 3 + 2 + 1 Error

Table 22 - Custom Text for Sub-category System

Changing Status Message Text

for details about the format of the MCNRCD.CFG

file.

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IOB Hardware Reference Troubleshooting CTI Products, Inc.

8. Troubleshooting

This table is a list of troubleshooting tips specific to the IOB module. For additional troubleshooting tips, refer to the troubleshooting section found in the Monitoring and Control Network System Manual (reference 1).

Due to the high percentage of surface-mount components the IOB is treated as a field replaceable unit. If any system problems are the result of a malfunctioning IOB unit, the entire unit must be replaced and returned for repair.

PROBLEM CAUSE

ERR LED is ON Verify that the IOB’s Group and Module switches are set to valid

numbers.

The wrong status messages are being displayed for my custom category

I have defined subcategories in my system, but the status messages being displayed are not correct

Verify that the application circuits are connected to the proper IOB pins and that the input value fields of your MCNRCD.CFG file match your I/O bit assignments for the application circuits.

Verify that the sub-category selector pins are set to the proper state (inactive pins should be left as no connect, and active pins should be tied to ground).

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CTI Products IOB I-O Interface User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Figure 1 - IOB Front and Rear View

Table 1 - Module Specifications

Figure 2 - I/O Equivalent Circuit

3. Theory of Operation

3.1 Controlling the I/O

Input Monitoring - I/O Groups and I/O Bits

Table 2 - I/O Point Binary Weight

Table 3 - Input Value Definitions

Output Control

Table 4 - Output Controls

3.2 Mode 1 - General Purpose I/O - 16 Outputs

3.3 Mode 2 - Two Sets of 1 of 4 Select Output

Table 5 - 1 of 4 Select Operation

Table 6 - Inverted Select A Operation

3.5 Mode 4 - One Set of 1 of 8 Select Outputs

Table 7 - 1 of 8 Select Operation

Table 8 - Inverted Select A Operation

3.6 Custom Status Text Sub-categories

Creating Two Sub-categories

Table 9 - 2 Sub-categories / 8 States

Creating Four Sub-categories

Table 10 - 4 Sub-categories / 4 States

Creating Eight Sub-categories

Table 11 - 8 Sub-categories / 2 States

4. Option Switches and Jumpers

Table 12 - IOB Option Switches

Table 13 - IOB Operating Mode Selector Switches

Jumper Options

Figure 3 - Jumper Options

Table 14 - Jumper Definitions

Figure 4 - Network IN/OUT Ports

Table 15 - Network Connector Pinout

Table 16 - Connector J1 Pinout

Table 17 - Connector J1 Pinout in Punch Block Order

7.1 General Purpose I/O Example

Figure 5 - I/O Group Configuration

Table 18 - Example System Text Definition

Table 19 - Custom Text for General I/O System

7.2 One of Four Select I/O Example

Figure 6 - 1 of 4 Select System Example

Figure 7 - 1 of 4 Select I/O Bit Configuration (Tx Select and PTT)

Table 20 - 1 of 4 Select Example Custom Text

7.3 Inverted Select A Example

Figure 8 - Inverted Select A Example

Figure 9 - Alarm and Control I/O Group Configurations

Table 21 - Sub-category Selection

Table 22 - Custom Text for Sub-category System