Secomea SiteManager 1029 Bedienungsanleitung

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This document describes how to operate the I/O ports of the SiteManager.

This document is supplementary to the “SiteManager Initial Contact” leaflets

and the SiteManager product data sheets. These publications can be found

on the Secomea web site.

Version 2.0, April 2013

SiteManager™ xx29/xx39

Working with I/O Ports

SiteManager xx29/xx39 - Working with I/O ports Page 2 of 12

Version 2, April 2013

Table of Contents

Introduction 3

1. About GND, 0V GND and Shield 3

2. Digital Input Ports 4

2.1. Electrical information 4

2.2. Input ports default functionality 4

2.3. Low-side Output switching equipment example 4

2.4. High-side Output switching equipment example 5

2.5. Changing Input 1 default functionality 5

2.6. Defining an Input port Email alert on the GateManager 6

2.7. Defining an Input port SMS alert on a SiteManager xx39 7

3. Digital Output Ports 8

3.1. Electrical information 8

3.2. Output ports default functionality 8

3.3. Low-side Input switching equipment example. 9

3.4. High-side Input switching equipment example. 10

3.5. Changing Output 2 default functionality 11

Notices 12

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Introduction

The SiteManager models 1029, 1039, 1429, 1439, 3229, 3239, 3429 and

3439 are equipped with 2 x digital input and 2 x digital output ports that can

be used to extend the primary functionality of the SiteManager.

The Input ports can be used to trigger alerts sent as email messages from

the GateManager, or trigger an SMS sent from SiteManager itself (SMS

alerts are only applicable to models with integrated 3G modems). Additional-

ly an Input port can be used to control when remote access is possible.

The Output ports can be used to trigger a signal to e.g. a PLC or HMI, based

on toggling of a button in the SiteManager GUI. Additionally an Output port

can signal when remote access is made via the SiteManager.

1. About GND, 0V GND and Shield

On the SiteManager the power should be applied between GND and +V as

shown.

On some industrial equipment, you will find that power should be supplied

between terminals marked -V or 0V and +V, and where -V/0V, GND and

Shield may have different potentials. The specifications for a USB port is that

GND and Shield should have the same potential, and since the SiteManager

has a USB port, the GND and Shield is per design short circuited internally.

It is also intentional that there are no separate -V/0V pins on the

SiteManager, since the presence of the USB port makes it extremely difficult

to protect the power regulation circuitry in the SiteManager, should you by

accident apply voltage between -V/0V and GND.

This would typically not be an issue even in cases where GND and Shield is

wired separately.

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2. Digital Input Ports

IMPORTANT: Examples in the following are only for illustration of the func-

tionality. Always consult the specifications of the equipment you intend to

connect.

2.1. Electrical information

Input port toggling on the SiteManager would typically be controlled by a

mechanical switch or a relay connected to the GND and Input terminals. The

Input port is when not connected in “Open state” (inactive) that corresponds

to a connected mechanical switch is turned OFF. An input toggles to “Close

state” (ON) when pulled from 2.34 V or above to 0.16 V or below.

The behavior for input voltages between 0.16 V and 2.34 V is undefined.

There is an internal 10 Kohm pull-up resistor to 3.3 V, so an unconnected

input port is in the “OFF” state.

2.2. Input ports default functionality

Input port 1 is default assigned to toggle GateManager Access. By connect-

ing a simple on/off switch you can control when remote service should be al-

lowed (see also section 2.5 Changing Input 1 default functionality)

Input port 2 is not associated with anything as default.

2.3. Low-side Output switching equipment example

When an input port of the SiteManager is connected to equipment that has

“low-side switching” conductor connections on the output, you can use the

SiteManager input ports directly without any external components (such as

pull up resistors or relays).

A typical use is the following, where a mechanical single pole switch is con-

nected between Input 1 and GND.

SM +24V

In1

GND

This exploits the default use of Input 1, which is to control the remote ac-

cess. Short circuit of Input 1 and GND will by default disable the

GateManager connection.

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2.4. High-side Output switching equipment example

When an input port of the SiteManager is connected to equipment that has

“high-side switching” connections on the output, you must apply a circuitry to

pull the output towards zero.

The following example uses a 24V relay, which subsequently assumes the

output of the equipment to support 24V operation (the coil voltage).

GND

24V relay

In1

SM +24V

(24V high-side switching)

24V

Output

2.5. Changing Input 1 default functionality

As mentioned previously, Input 1 by default controls remote access.

In the SiteManager menu GateManager > I/O you can determine if the de-

fault action is enabled, which is the case in this screen shot:

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If you want to use Input 1 for another purpose, you can disable the current

action. Enter the menu GateManager > General and press the [More>>]

button. The control of the "Input 1 Action" will be shown, and you can define

it to trigger and alert instead.

2.6. Defining an Input port Email alert on the GateManager

Defining an alert on the GateManager requires a GateManager Domain ad-

ministrator account (GateManager PREMIUM).

Make sure that Alerts are made visible in the domain tree view by ensuring

that the Alert icon has a blue background:

Enter the domain in which you want to create your alert, right click the do-

main and select Create Alert:

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Select a name for the Alert, which will also become the subject of the alert

email.

Select that the alert should apply to "SiteManager", which will give you op-

tion to select "Trigger on" with the value "INPUT1" or "INPUT2".

Also decide if the Alert should be used in the same domain, or if it should be

applicable to This domain only or also sub-domains,

2.7. Defining an Input port SMS alert on a SiteManager xx39

On SiteManager with built-in 3G modems you can configure local submis-

sion of SMS alerts based on triggering the Input ports. SMS numbers and

message can be configured in menu GateManager > Alerts:

You can read more details about email alerts in the separate document

"SiteManager xx39 SMS alert system" available at the Secomea web site.

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3. Digital Output Ports

3.1. Electrical information

The output ports of the SiteManager are of the “open drain” kind, which

means that (just like a switch) no voltage is output by the port itself, but must

be controlled from a circuitry supplied by an external source (max 24V) or

from the Vout (5V) pin.

Do NOT apply voltage (e.g. 24V) directly to the SiteManager Output

ports, as this could permanently damage the ports.

In the “OFF” (inactive) state, the impedance is min 24 Mohm; in the “ON”

(active) state, the impedance is max 0.5 ohm.

Maximum sink current is 0.2A, which means the Output ports are protected

by 0.2A fuses mounted in extension to the FET transistors of the Output

ports. But is still very important to dimension the external circuitry to not

overload the ports. At 24V you should therefore apply pull-up resistors at

minimum 24V/0.2A = 120 ohm (24V*0.2A = 4.8W), but it is recommended to

not exceed 3W, meaning a pull-up resistor of 220 ohm is recommended.

These pull-up resistors must

A 12V or 24V relay can be applied to an output port directly if the relay is

supplied with the corresponding working voltage (12V or 24V respectively)

and with a "trigger current" at max 0,2A. (A larger relay would require more

current, and subsequently would require an additional "assisting" relay for

the SiteManager output ports to trigger it)

be applied externally, unless you are using a

relay which has a high enough impedance.

3.2. Output ports default functionality

Output port 1 is dedicated to go active when connecting with Go To Appli-

ance from GateManager, LinkManager Mobile, or LinkManager's domain

view. and can be used to turn on an external warning light that tells local

service people to be extra careful, because the machine is currently being

serviced from remote.

Output port 2 can be set ON or OFF via the toggle button in the SiteManager

web GUI under System > I/O. But it can also be configured to go active

when a working GateManager connection is available. This can be used to

inform an operator that the Internet connection may be down. (ref. to section

3.5 Changing Output 2 default functionality)

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3.3. Low-side Input switching equipment example.

When an output port of the SiteManager is connected to equipment that has

“low-side switching” conductor connections on the input, you can use the

SiteManager output ports directly without any external components (such as

pull up resistors or relays).

( low-side switching)

Input

24V

GND

Out1

Vout

+24VSM

Ref. the above, the ports of the SiteManager should also be powerful

enough to pull a relay directly (even a electromechanical one).

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3.4. High-side Input switching equipment example.

When an output port of the SiteManager is connected to equipment that has

“high-side switching” conductor connections on the input, you must apply

additional circuitry to pull the output towards +.

Be careful about just applying a resistor to pull the output high, as the effect

and resistor value must be calculated based on the power consumption and

switching voltage level of the attached equipment.

A safer setup will be to use a Relay.

The following example uses a 5V relay, which means you can use the Vout

of the SiteManager to pull the output high.

(24V high-side switching)

5V relay

Input

24V

GND

Out1

Vout

+24VSM

In the following example a 24V relay is used, which means an external

source must keep the level high.

+24V

Vout

Out1

GND

24V relay

(24V high-side switching)

Input

24V

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