Category: Industry Trends

Introduction

The IOR810 is a gateway module that connects Symphony Plus SD-Series and HR-Series controllers to the S800 I/O.

As part of a Symphony Plus or Symphony Harmony control system.

The IOR810 provides an alternative way to use the S800 I/O with Sequence of Events (SOE) functionality.

The accuracy of the SOE timestamps is determined by the specifications of each S800 SOE digital input module type.

The IOR810 is the interface between the HN800 I/O bus (electrical or fibre optic) and the existing S800 I/O module bus (fibre optic only).

The core function of the IOR810 is to scan the S800 I/O modules and provide information to the Symphony Plus controller via the HN800.

The IOR810 connects and scans up to seven S800 cluster modems over the fibre module bus.

Each cluster modem can support up to 12 S800 I/O modules.

The distance between the IOR810 and the Symphony www.cniacs.com Plus controller is up to 30 metres if connected via the electrical HN800 bus;

If connected via a fibre optic HN800 bus, the distance between the IOR810 and the Symphony Plus controller is up to 3000m using RFO810 repeaters.

If using plastic fibre optic cables, the maximum distance of the fibre optic modular bus between the IOR810 and the S800 cluster modem or between two cluster modems in a daisy chain is 15 metres;

If HCS fibre optic cable is used, the maximum distance is 200 metres;

1000 m if using TB825 optical media converters and glass fibre cables.

The cluster modems can be non-redundant or redundant.

The IOR810 receives configuration information from the Symphony Plus controller using standard Symphony Plus function codes to specify S800 I/O data.

It will process inputs and outputs, analogue and digital signal types, pulse counters and Sequence of Events (SOE) data acquisition.

Product Overview

The S800 I/O is easy to install I/O modules and process wiring.

It is highly modular and flexible, so I/O modules can be combined to suit a wide range of applications.

Including most types of signalling, HART and intrinsically safe interfaces, the S800 I/O module is combined with a fieldbus communication interface (FCI) to form an I/O station.

The S800 I/O can be used in both stand-alone and redundant applications.

In general, all S800 units are G3-compliant. G3-compliant modules can withstand

According to ISA-S71.04. G3-compliant modules can withstand more severe environmental conditions. The following S800

units are G2 compliant – SD821. SD822. SD823. SD831. SD832. SD833. SD834.

G3-compliant versions of the SD822 and SS822 are also available.

G3-compliant SD822 and SS822 versions are also available.

All modules are labelled with a bar code showing the serial number, product ID and product revision number.

Separate barcode strips are included on the modules if required.

The S800 I/O can be divided into the following categories:

– Module Terminal Units (MTUs)

– I/O Modules – S800 I/O modules and S800L I/O modules.

The S800 I/O modules can be used with Modular Terminal Units.

The S800L I/O Module can be mounted directly to a standard DIN rail.

The modules also contain terminals for connection.

Modular Terminal Units and Terminal Units

Module Terminal Units (MTUs) are passive base units that house I/O modules.

modules. They contain process terminals and a section of the module bus.

The Module Terminal Unit (MTU) allocates the module bus to the I/O module and the next MTU.

It also generates the correct address for the I/O module by

transferring the output position signals to the next MTU.

Two mechanical keys are used to configure MTUs for different types of I/O modules. this is only a mechanical configuration and does not affect the MTUs or the functionality of the I/O modules.

Each key has six positions and there are 36 different configurations. The configuration can be changed with a screwdriver.

The MTU can be mounted on a standard DIN rail. It has a mechanical latch

that locks the MTU to the DIN rail. The latch can be released with a screwdriver.

The MTU has a mechanical locking mechanism that locks the module in its position.

position. The mechanism also sends a www.cniacs.com BLOCK signal to the I/O module to keep the module in its initial state until it is locked.

Holds the module in its initial state until it is locked in place.

The top of the MTU can be removed to replace the terminal board even when the system is running.

Even if the system is still running. Damage to the terminal screws may cause this need.

The MTU is available in three models (Compact, Extended, and Redundant).

Compact MTUs typically use a single wire connection for compact installation of I/O modules.

Extended MTUs provide a more complete MTU installation, including 3-wire connections, fuses, and field circuit power distribution.

Features

– 8 channels for 0… .20 mA, 4… .20 mA d.c., single-ended unipolar inputs.

– 1 group of 8 channels isolated from ground.

– 12-bit resolution.

– Input shunt resistors protected to 30 V with PTC resistors.

– Analogue inputs are short-circuit protected to ZP or +24 V.

– Inputs can withstand HART communications.

– Process and Power

Process and power connections are made via removable connectors.

Process and power supply are connected via removable connectors.

The AI801 analogue input module has 8 current input channels.

The current inputs can withstand a short circuit of the transmitter power supply with a minimum of 30 VDC without damage.

Current limiting is achieved by means of PTC resistors. The input resistance of the current inputs is 250 ohms, including the PTC resistors.

The module distributes external transmitter power to each channel. This adds a simple connection for power distribution to the two-wire transmitter.

There is no current limiting on the transmitter power terminals. All eight channels are isolated as a group from the module bus. Power to the input stage is converted from an external 24 V voltage.

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Features

AI810 analogue input module

Number of channels 8

Input type Unipolar single-ended

Measuring range 0…. .20 mA, 0… .10 V, 4… 20 mA(1) , 2… 10 V (1)

Undervoltage/overvoltage range -5% / +15

Input impedance (voltage input) 290k ohms

Input impedance (current input) 230…. .275 Ohm

Maximum field cable length 600 metres (656 yards)

Voltage input, maximum non-destructive 30 VDC

NMRR, 50 Hz, 60 Hz >40 dB

Maximum error 0.1%

Resolution 12 bits

Temperature drift current 50 ppm/° C typical

80 ppm/°C maximum

Temperature Drift Voltage 70 ppm/° C

100 ppm/° C maximum

Update cycle time 8 ms

Current consumption 24 V (module bus) 40 mA

Current consumption 5 V (module bus) 70 mA

Power dissipation 1.5 W

Voltage monitoring Internal power supply

Transmitter power fusing on MTU (TU830 max. 1 AT per group)

Sensor power distribution 1 A max. per connection

Input filter (rise time 0-90%) 140 ms

Isolation configuration Ground isolation

Module Terminal Unit TU810. TU812. TU814. TU818. TU830. TU833. TU835. TU838 or TU850

MTU key code AE

Rated insulation voltage 50 V

Insulation test voltage 500 V (AC)

Features

– 8 channels for 0… .20 mA, 4… .20 mA, 0… .5 V or 1… .5 V d.c. single-ended unipolar inputs.

– 1 group of 8 channels isolated from ground.

– 12-bit resolution.

– Transmitter supply current limited per channel.

– HART direct communication.

AI815 Analogue Input Module

The AI815 analogue input module has 8 channels.

The module can be configured as a voltage or current www.cniacs.com input. Current and voltage signals cannot be mixed on the same I/O module.

The voltage and current inputs can withstand overvoltage or undervoltage of at least 11 VDC.

Input resistance is greater than 10 M ohms for voltage inputs and 250 ohms for current inputs.

The module distributes external HART-compatible transmitter power to each channel.

This adds a simple connection for power distribution to 2-wire or 3-wire transmitters. Transmitter power is monitored and current limited.

If an external power supply is used to power HART transmitters, the power supply must be HART-compatible.

The module cycles through self-diagnostics.

Module diagnostics include

– External power, transmitter power, and external shunt errors. These errors are reported as external channel errors.

– Analogue readback, reference voltage, internal power supply, checksum, watchdog, and memory. These errors are reported as module errors.

All eight channels are isolated from the module bus as a group. Power to the input stages is converted from the 24 V supply on the module bus.

The module has HART pass-through capability. Only point-to-point communication is supported.

Eight different types of MTUs can be used; the TU830/TU833 Extended MTU allows a three-wire connection to the device without additional terminals.

The TU810 (or TU814) Compact MTU has 24 V process voltage input terminals, but requires external terminals to distribute 24 V power to field devices.

The Extended MTUs, TU835 and TU838 provide one fuse per channel (3 A maximum) for external transmitter power.

The TU818 Compact MTU can be connected to 2-wire transmitters without external commissioning.

The TU812 Compact MTU has a D-Sub 25-pin (male) connector for process connection.

If HART is used, a shielded field cable for process connection is required.

The parameter shunt mode should be set to internal shunt when a current input is required and external shunt when a voltage input is required.

Functions

– 4 channels for -20… +20 mA, 0… .20 mA,

4… .20 mA, -10… +10 V, 0…20 mA, 4…20 mA, -10… +10 V, 0… .10 V, 2… .10 V, -5… +5 V, 0… .5 V, 1… .5 V d.c. Bipolar differential inputs.

– A set of 4 channels isolated from ground.

– 14 bit resolution plus sign.

– Input shunt resistor protected to 30 VDC.

– Inputs can withstand HART communication.

AI820 Analogue Input Module

The AI820 analogue input module has 4 differential www.cniacs.com bipolar current/voltage inputs. Each

channel can be either a voltage or current input.

The current inputs are designed to withstand accidental maximum normal mode 30 VDC connections.

To protect the current input circuits from hazardous input levels (i.e., accidental connection to a 24 V power supply), the 250 Ω current-sense resistor is rated at approximately 5 watts.

This is only used for temporary protection of one channel.

The module distributes external transmitter power to each channel. This adds a simple connection (using the extended MTU) to distribute power to external 2-wire transmitters.

There is no current limit on the transmitter power terminals.