Compact utility outstation / EN/IEC60870-5-101 slave The RTU870 is aserie of compact outstations with different integrated input/output configurations designed foruse in the industrial environ- The units are designed in a very compact 162 mm wide module for DIN- rail mounting (35 mm symmetrical). Dimensionsconform to DIN 43880 (used for circuit breakers) thus insuring easy installation in standard installation panels and boxes widely available in the electrical industry. The RTU870 are delivered with a range of different power supply options including charger options (with a battery monitor) for an external lead acid battery, enabling the RTU to operate regardless of interruptions in the mains supply. The RTU870 hasanumberof integral inputs and outputs and further l/O's can optionally be added via an expansion bus. The main communication is done through the EN/IEC60870-5-101 protocol. Communication interface is RS232. The RTU870 do in general support modem dial-up features. The unit can be programmed to perform simple control sequences using an EN/IEC1131-3 IL (PLC) programming language. Program- ming and setup is achieved by using a standard PC connected to the programmer port, with the IOTOOL870 software package installed. The ModbusRTU protocol is used on the programming port COM2. VERSIONS/ORDERING CODES 8 digital input/8 digital output 16 digital input/16 digital output 8 digital input/4 analog input 24 digital input/12 relay output Power supply Battery 12V PS/Solar panel cont. 40 Analogue input range Digital input range (digital types only) Dl on modules with Al is always 10-30VDC uni-polar unless other is Mains supply

Compact utility outstation / EN/IEC60870-5-101 slave RTU870

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 TECHNICAL DESCRIPTION Input/output The RTU870 basic I/O fit can include up to 32 input/output terminals. I/O options available: Version UCR- 8DIO 16DIO 32DI Digital inputs 8 16 32 (10-30V DC) Digital outputs 8 16 0 (PNP o. c.) Analogue inputs 0 0 0 (0-10V/4-20mA) Relay outputs (NO) All digital I/O´s are equipped with opto-couplers. The analogue inputs have galvanic isolation between the individual channels. Solid state relays are used for multiplexing the analogue inputs. Spare terminals Spare terminals Loop supply (optional) NOTE See...

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 I/O expansion The basic I/O fit of the RTU can be expanded by attaching BC expansion modules. Standard 108mm wide. RTU with expansion modules B-CON programme development Expansion modules are available with the following I/O configuration: 8-32 10-30V inputs 8-32 10-30 V PNP (or NPN) open collector outputs 8 230V inputs / 8 230V outputs (potential free relay) 4-8 analogue inputs (0-10V, 4-20mA, etc.) 8 Thermo coupled inputs (J, K, R, S, T type) 8 Pt-100, Pt-500 or Pt-1000 RTD inputs 4 analogue outputs (0-10V, 4-20mA, etc.) The number...

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 RTU firmware block diagram Analogue output (AO): Output (word): wo2000, wo2002……., wo2014, wo2016……… wo2000 sets the first analogue output (channel 0). wo2014 sets the analogue output channel 3 at the second AO module. IEC870-5-101 Interface class 1 data, class 2 data IEC1131-3 Programming I/O transfer, addressing IEC870 Configuration/Program Interface (Modbus) Internal I/O addressing (B-CON) The address of the I/O in the RTU has the same structure as other Series 2000/4000 products. The I/O´s are separated into 4 data types; digital...

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 B-CON address

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 COM1 as RS485 The RS485 port (9 pole sub-D) is equipped with Data and RTS signals (data +/- and RTS +/-). The RS485 interface is isolated with optocouplers to avoid noise and ground level differences when using long communication lines. RTS Trailing The RTS Trailing define the delay time from the last character is transmitted to RTS is deactivated. The RTS Trailing value is configurable in the range 0..50 of 10 ms units. Ie. up to 500 ms. NOTE: When using RS485 the Modem mode of the RTU870 cannot be used. That means also the dial out...

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 CS is responsible for hanging up the link. This has to be regarded in particular, if there are messages from sub-RTUs that have to be transmitted. Messages from sub-RTUs can be transmitted with delay. The transmission time for a message from the last connected sub-RTU to the router RTU has to be taken into consideration by the CS before abort a dial up connection. This is for the RTU870 only relevant regarding the settings for “Inactivity timer”. The RTU870 hang up itself if “Inactivity hang up delay” time is over. CS calls RTU870 If...

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 Typical charge / discharge cycle (type 60) Total load (mA / 12V) Battery (A hours) Backup time (hours)* Recharge time (hours)* Power error warnings / status reports Power and battery errors are reported as single point informations. Refer to the interoperability document for address details. Power consumption Power consumption is directly related to the number of I/O´s connected to the RTU870. Below are examples for the standard RTU870 versions as stand alone units. All figures are typical consumption at 12V. The additional current for...

Compact utility outstation / EN/IEC60870-5-101 slave RTU870 IEC870-5-101 General The main serial interface port is, via a modem or direct used to provide an IEC60870-5-101 slave protocol functionality. The slave driver handles the reception of the requests from the master. When a error free request is received the slave driver will signal the B-CON application which is supposed to act on the request and send a response back to the master. This means that much of the IEC870-5-101 protocol is the responsibility of the B-CON application, which is free to define which requests it will support and...