Hardware Overview > Input and Output Devices > RMS-DI-L-R

General information

Functions

Description

Dimensions

108 x 89.7 x 62.2 mm

Housing material

PC (Polycarbonate)

Weight

200 g

Power Supply

The digital input module has the following three power supply variants:

oTwo 3.6 V lithium thionyl chloride AA batteries

The power supply of the batteries suffices to carry out measurement and data storage and to operate the wireless interface. Devices with an Ethernet interface must also have one of the following power supplies.

o24 VDC ±10 % / <100 mA1 via terminals (V+ / V-)

oPower over Ethernet (PoE), per standard IEEE 802.3af, Class 1

Note on the batteries:

The AA batteries are lithium thionyl chloride batteries available in the industrial trade. All RMS input modules are designed for this type of battery. Only batteries of the same type or with identical characteristic values may be used as replacement batteries.

Type of Battery

Battery Specifications
Article	RMS-BAT (ER14505M, multiple manufacturer - see website: accessories)
Type	Li-SOCl2
Capacitance	2100 mAh
Voltage	3.6 V
Dimensions	AA (50.3 mm x Ø14.55 mm)

Interface

The device is operated completely via the LAN interface.

Cable length

Max <3 m

1 Power supply requirements: 24 VDC ±10 % / >4 W nominal / <15 W limited power source

RMS Digital Input Module

The digital input module saves all measured data based on event and sends it to the database via Ethernet. The minimum signal pulse length is 100 ms. Should the connection be lost, the module stores the data on the internal memory to protect data integrity and fills up the data gaps when the connection has been restored. The device has a battery so that logging of measured data is also ensured in the event of a failure in the external power supply.

The device provides the following basic functions:

oTwo input channels (logic level 5 ... 24 V or reed contacts)

oData logging of up to 75,000 measured values

oTransfer of the recorded data to the RMS software

oFirmware update

Inputs / Outputs

Two channels are available for measuring a digital Boolean value each. The two inputs are switched either via a logic level of 5 ... 24 V or a reed contact. When the input status is changed, the device is activated, and measured values are transferred to the database. This means the measurement of the digital inputs is event triggered.

The following table lists the main types of RMS devices:

Data Loggers for Interchangeable Probes
RMS-LOG-L	Data logger, external probe, LAN
RMS-LOG-868	Data logger, external probe, 868 MHz
Temperature Data Loggers
RMS-MLOG-T10-xxx	Data logger, external probe, 1 x NTC, 868 / 915 MHz
RMS-LOG-T-xxx	Data logger, internal probe, 1 x NTC, 868 / 915 MHz
Analog Input Modules
RMS-MADC-xxx-A	Data logger, 1 x analog input, 868 / 915 MHz , 0(4)…20 mA
RMS-MADC-xxx-V	Data logger, 1 x analog input, 868 / 915 MHz , 0…10 V
RMS-8ADC-L-R-A	8 x analog input, LAN, mounting on DIN top hat rail, 0(4)…20 mA
Digital Input Modules
RMS-DI-L-R	Data logger, 2 x digital input, LAN, mounting on DIN top hat rail
Digital Output Modules
RMS-DO-L-R	2 x digital output, LAN, mounting on DIN top hat rail

RTCC (Real Time Clock Calendar)

The device has a real time clock calendar. The time is synchronized continuously when connected to the server.

Data Logging

The values of every measurement are saved in the memory with the time stamp. At a measurement interval of one minute, it is possible to save data of more than one month, which corresponds to 70,000 measured values. When the ring memory is full, the oldest values are overwritten. In case of server or network failures, loss of measured data can only happen after one month.

The recording of measured data is always active when the device is integrated in a RMS-WEB system and thus continuous measurements are carried out.

Following measured values are saved:

otime stamp

oactual status of the digital inputs

Operating and display elements

The device has a button and a multicolored LED for operation and display of the operating state. The button is used during commissioning or for switching the device off in battery operation. The device flashes only if the operating state changes, or if the push-button is pressed briefly. The displayed device state is updated for each event. In order to prolong the operating time in the battery operation, the LED flashing can be deactivated.

Pairing
Trigger	Action	LED
1 s press	Confirms pairing	n x orange, the indicator flashes while the paring request is running
Device status check
Trigger	Action	LED
1 s press	At "online" operation	1 x green, measurement & data transmission successful 1 x orange, measurement successful, data transfer failed 1 x red, low battery (only by battery powered)
Automatic	At status change from the input