Arctic IEC104 Gateway Jari Lahti CTO Arctic IEC104

Arctic IEC-104 Gateway Jari Lahti, CTO

Arctic IEC-104 Gateway • • • IEC 60870 -5 -104 to IEC 60870 -5 -101 communication gateway – Conversion between IEC-104 and IEC-101 Local IEC-101 polling of Class 1 and Class 2 events One RS-232 and one RS-232/422/485 port up to 460800 bps Internal Ethernet and GSM/GPRS wireless network interface Secure communication with internal VPN and firewall GPRS operator independent static IP addressing with Viola M 2 M Gateway Packet compression for slow-speed links I/O extension option (=Arctic RTU) DIN rail mounting option IEC-104 OVER GPRS IEC-101 OVER RS-232

Wireless Feeder Automation SCADA IEC-104 Viola M 2 M Gateway GPRS IEC-104 OVER SECURE VPN TUNNEL Arctic IEC-104 Gateway IEC-101 OVER RS-232 IEC-101 Devices (Feeder Controllers)

Physical Connections GPRS Antenna -FME connector Power input -6 -26 VDC RS 1 (RS-232) -Console or plain data Console switch -Defines the mode of RS 1 (console or data) RS 2 (RS-232/422/485) -IEC-101 data RS 2 DIP switches -RS-232 / RS-422 / RS-485 -Full (485) / Half (422) duplex -Bias on/off -Termination on/off Ethernet -10/100 Base-T

DIP Switches and RS 2 pinout • DIP switches control the operation of RS 2 • RS 2 pinout (standard male DB-9) • RS 2 operation in RS-232 mode (standard DTE) and in RS 422/485 mode

IEC-101 Serial settings • Serial speed – – – – 1200 2400 4800 9600 19200 38400 57600 • Data bits – 5, 6, 7, 8 • Parity –None, Even, Odd • HW (CTS/RTS) Flow control –Yes/No

Network settings • • Network protocol – TCP (standard IEC-104) – UDP Network port to listen – The TCP or UDP port the Arctic IEC-104 Gateway listens for incoming IEC-104 connections – 2404 is the standard port Network idle timeout – If there is no communication on open connection during defined interval the Arctic IEC-104 Gateway closes the connection New connection priority – Defines are new connections accepted if there is a connection already – Setting Yes enables new connection to have higher priority and the existing connection is closed

IEC-104 Settings • TX window size (k) – • RX window size (w) – • • NOTE • • (w) must be smaller than (k) (2/3 of k) (t 1) must be longer than (t 2) w, k, t 1 and t 2 should be same on both ends (SCADA, Arctic) of IEC-104 connection (t 3) should be smaller on Arctic than on SCADA size of IEC-104 Cause of transmission field length in bytes Common address length – • defines the maximum sequence number used on IEC-104 communication Cause of transmission length – • if the IEC-104 link is on suspendet state over defined timeout Arctic will close the link Max sequence number – • interval for sending IEC-104 link test packets Suspended timeout – • how many seconds to wait from last received IEC-104 packet before sending acknowledgement Link test interval (t 3) – • how many seconds to wait acknowledgement from IEC-104 master I frames RX timeout (t 2) – • how many IEC-104 packets Arctic receives from IEC-104 master before sending acknowledgement I frames TX timeout (t 1) – • how many IEC-104 packets Arctic sends to IEC-104 master before waiting acknowledgement size of IEC-104 Common address field length in bytes Info object address length – size of IEC-104 Information object address field length in bytes

Local polling of events • The Arctic IEC-104 gateway polls locally the IEC-101 device for Class 1 and Class 2 events – events are sent when they occur – no need to perform fast polling over GPRS – slow periodic link test frames can be used Send when events Local IEC-101 polls

IEC-101 Settings • Slave link address – • Link address field length – – • – size of IEC-101 Cause of transmission field length in bytes Common address length – • how many times to retry a command to IEC-101 slave Cause of transmission length – • timeout of waiting reply to end from IEC-101 slave Retry limit – • timeout of waiting reply to start from IEC-101 slave Reply end timeout – • defines is the IEC-101 link kept open by Arctic even when there is no active IEC-104 connection the events are still not polled untill the IEC-104 connection is active Reply header timeout – • the interval of testing IEC-101 link status in multiple of 100 ms Keep link open – • the interval of polling Class 1 or Class 2 events from IEC-101 slave in multiple of 100 ms Link test interval – • the size of IEC-101 link address field in bytes 1 or 2 Event poll interval – • the link address of IEC-101 slave size of IEC-101 Common address field length in bytes Info object address length – size of IEC-101 Information object address field length in

ASDU Conversion • The Arctic IEC-104 Gateway supports ASDU level header length conversion – Cause of transmission length – Common address length – Information object address length • This is usually required because the header lengths typically differs between IEC-101 and IEC-104 • It is possible to convert also ASDU types if the implementation differs between IEC-104 master and slave

ASDU Converter settings • Use ASDU converter – set Yes to allow conversion between IEC-101 and IEC-104 header field lengths • Use ASDU type replacer – set Yes to allow conversion between ASDU Original type and Applied type • Original type • – original ASDU type to be searched if ASDU type replacer is enabled Applied type – the ASDU defines is the type used to replace the original type if ASDU type replacer is enabled

Packet collector • The packet collector can be used to "collect" multiple IEC-104 packets to Arctic before sending them to IEC 104 master • This decreases the amount of used GPRS data because data is sent in single packet rather than in multiple packets – single TCP/IP header instead of multiple headers

Packet collector settings • Use packet collector – set yes to allow packet collector operation • Max bytes • NOTE • If any of the triggers (Max bytes, Max time, Max packets) is reached the packet is sent – Maximum bytes to collect before sending the packet • Max time – Maximum time to collect before sending the packet • Max packets – Maximum number of IEC-104 frames to collect before sending the packet

IO Extension • It is possible to equip Arctic IEC-104 Gateway with I/O extension board – 8 DI – 2 DO • These I/O pins can be used as an extension of IEC-101 slave address space – single IEC-104 connection is required to control the IEC-101 slave and Arctic IO extension • Arctic sends the I/O status as spontaneous events in case of General interrogation • All IO extension information is Single-point information without time tag • It is possible to send the Input status periodically as spontaneous events • The output pins can be controlled with Single command • I/O extension board is a manufacturing option

IO Pinout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Front View Output circuit Input circuit • NOTE • Input voltages below 2 V are detected as logic "0" • Input voltages between 5 -60 V are detected as logic "1" PIN SYMBOL DESCRIPTION 1 V+ Vcc out, 50 m. A 2 DI_1 Digital input, 0. . . 60 V 3 DI_2 Digital input, 0. . . 60 V 4 DI_3 Digital input, 0. . . 60 V 5 DI_4 Digital input, 0. . . 60 V 6 DI_5 Digital input, 0. . . 60 V 7 DI_6 Digital input, 0. . . 60 V 8 DI_7 Digital input, 0. . . 60 V 9 DI_8 Digital input, 0. . . 60 V 10 DI_COM Digital inputs referense input 11 DO_1 A Digital output pole 1, 0. . . 60 V, 50 m. A 12 DO_1 B Digital output pole 2 13 DO_2 A Digital output pole 2, 0. . . 60 V, 50 m. A 14 DO_2 B Digital output pole 2 15 GND output

IO Extension settings • Use IO extension board – • Common address – • • – • Send input status cyclic – • Defines are the input pin status information sent cyclically when the IEC-104 connection is active • • – Defines the time interval in 0. 1 secs of sending input status cyclical message Inputs status are sent as spontaneous events Send input state change event – Defines does the state change of input cause sending of spontaneous event. Defines the duration in 0. 1 secs of output short pulse. Output long pulse duration – • timeout of waiting reply to end from IEC-101 slave Output short pulse duration – • The information object address of first digital output on IO extension board Reply end timeout – • number of digital outputs used 0 -2 Outputs start address – Cyclic interval – • Defines the forced operation of outputs executed regardless the actual command data. The information object address of first digital input on IO extension board Number of outputs – – Forced output function number of digital inputs used 0 -8 Inputs start address – • the IEC-104 common address of IO extension board Number of inputs – – • set Yes to enable IO extension Defines the duration in 0. 1 secs of output long pulse Paired outputs – Defines are the outputs controlled individually or are they controlled as paired outputs.

Serial port RS 1 • The serial port RS 1 can be used in two modes – Console mode - access Arctic command line with serial console – Data mode - transfer plain RS-232 data over network • The RS 1 mode is controlled by Console Switch on Arctic front panel – Switch position in Console mode – Switch position in Data mode • When operating the console switch always turn Arctic OFF

RS 1 Serial Gateway