ACP 1703 Ax 1703 CM Fieldbus Interface Ring (3x FO, 1x el.)

Transcription

1 ACP 1703 Ax 1703 CM-0821 Fieldbus Interface Ring (3x FO, 1x el.) Bus interface for an optical field bus or multi-point traffic as optical ring or optical star Features: 3 optical transmitter and receiver for each channel (ST-connector) for optical fibres up to 1300m long 1 electrical interface V.28 (RJ45-plug) for patch cable up to 3m long Transmission rate max kbps Power supply alternatively via the electrical interface, or via PS-663x or PS-6621 Copyright Siemens AG 2007 MC

2 Application CM-0821 is used for the construction of networks with optical or electrical branching (signal add/drop to/from ring): Modes of operation IEC Balanced Point-Point (point-to-point-traffic, full-duplex) IEC unbalanced multi-point (multi-point traffic) IEC unbalanced multi-point (multi-point traffic) Network structure Ring redundant masters (redundant) bi-directional communication in the ring signaling of a ring interruption Star, tree redundant masters Up to kbps transmission rate 3 optical transmit and receive channels Receive channel stuck at zero monitoring 1 electrical interface V.28 Power supply Via the electrical interface can supply power to one module only PS-6630 or PS-6632 redundant power supply is supported (but not to increase power) PS-6621 Not more than 6 CM-0821 modules on a power supply PS-663x or PS-6621 Differences between versions --, -A, -B, -C, -D At present there are three versions of CM-0821 with the following differences Version -- Version -A Version -B/ -C / -D Item numbert GA GA0-821-A GA0-821-B / -C / -D Designation in data sheet CM CM-0821-A CM-0821-B / -C / -D Supported configurations Star Star ring, star Redundant masters Star Star ring, star Balanced point-point from version -D Recognizable outside differences DIP-switch S2 not present DIP-switch S2 has 2 switches DIP-switch S2 has 3 switches 2 ACP 1703 Ax 1703, CM-0821

3 Configurations Star, singular master, up to max. 2 slaves Master Slaves Star, redundant masters, > 2 slaves redundant masters Slaves CH3 CH CH3 CH3 Slaves PS-663x PS-663x CM-0821 CM-0822 ACP 1703 Ax 1703, CM

4 Ring, redundant masters redundant masters Slave Slave Slave Slave Further configurations see ACP 1703 Platforms Configuration Automation Units and Automation Networks. 4 ACP 1703 Ax 1703, CM-0821

5 Features Ring 1 CM-0821 per branch Supports redundant masters (2 branches) Channels 3 (CH3, optical) and 4 (, electrical) together can be set for a connection in direction to a master or in direction to the slaves Channel 3 (CH3, optical) transmission rate for stuck at zero monitoring can be set using DIP switch line-idle state can be set using DIP switch Using channels 1 () and 2 (), the ring is made Features Star / Tree 1 CM-0821 and up to 7 CM-0822 can be attached side by side Supports redundant masters (optically and electrically connected) Channels 3 (CH3, optical) and 4 (, electrical) together are set for a connection in direction to a master Channels 1 () and 2 () connect to one slave each Optical channels transmission rate for stuck at zero monitoring can be set using DIP switch line-idle state can be set for each interface using DIP switch Protocol Elements that support Power Supply and Signaling The following protocol elements support supplying power to the CM-0821 and signaling a ring interruption over the serial interface: Protocol Elements SM-2551/UMPMA0 SM-2551/UMPSA0 SM-2551/SFBMA1 SM-2551/SFBSA1 SM-2551/103MA0 SM-2551/103SA0 Designation Standard Protocol for Multi-Point Traffic Standard Protocol for Field Bus Standard Protocol for Interfacing of Protective Devices ACP 1703 Ax 1703, CM

6 Block Diagram (Module) 6 ACP 1703 Ax 1703, CM-0821

7 Block Diagrams Data Flow Ring from/to either master or slave CM-0821 Rx_3 Tx_3 Rx_4 Tx_4 TTL_ Bus ring administrator Tx_1 Rx_1 Tx_2 Rx_2 ring Star / Tree (Module Row) from/to redundant masters from/to slaves CM-0821 Rx_3 Tx_3 Rx_4 Tx_4 CM-0822 Rx_3 Tx_3 Rx_4 Tx_4 TTL_ Bus TTL_ Bus Tx_1 Rx_1 Tx_2 Rx_2 Tx_1 Rx_1 Tx_2 Rx_2 from/to slaves ACP 1703 Ax 1703, CM

8 Technical Specifications Interfaces Optical interfaces channel 1 (, X1/X2) channel 2 (, X3/X4) channel 3 (CH3, X5/X6) Electrical interface channel 4 (, X8) Multimode glass fibre optic: (1) 50/125µm fibre (typ. 2.3dB/km) max kbps (2) 62.5/125µm fibre (typ. 3.0dB/km) max kbps In a ring configuration, because of higher data rate, a 62.5/125µm fibre must be used in the ring. Transmitter (820nm): Power launched into the fibre: max min Receiver (820nm): (1) -13.8dBm -18.8dBm (2) -10dBm -15dBm Received power: max min Data rate R D: (1), (2) -10dBm -40dBm max kBit/s Line lenghts (3dB system reserve): (1) km (2) km in the ring km else V.28 asynchronous Status signal for ring interruption signaling allwos to supply power via the electrical interface For connecting patch cables (RJ45 connector), 3m maximum length Data rate max kBit/s Signal propagation delays Ring in the Ring ( ) add to ring (CH3/ /) drop from ring (/ CH3/) in the optical fibre T [µs] = 8,65 + (6,25*10 5 ) / R D [Bit/s] T CH3/ / [µs] = 4,78 + (5*105) / R D [Bit/s] T / CH3/ [µs] = 11,5 + (6,25*10 5 ) / R D [Bit/s] Approx. 5ns/m (approximate value) The signal propagation delays do not depend on direction. Note: In order to obtain the total signal propagation delay from one master to one specific slave, the above mentioned signal propagation delays and the signal propagation delay of all fibre optics sections have to be taken into consideration (see an example in ACP 1703 Platforms Configuration Automation Units and Automation Networks) 8 ACP 1703 Ax 1703, CM-0821

9 Signal propagation delays Star / Tree Between CH3/ in the CM-0821 and an optical channel in the same CM-0821 ( ) in a CM-0822 of the same row (//CH3/) in the optical fibre T CH3/ / [µs] = 4,78 + (5*105) / R D [Bit/s] T CH3/ CM-0822/CHx [µs] = 4,78 + (5*105) / R D [Bit/s] approx. 5ns/m (approximate value) The signal propagation delays do not depend on direction. Note: In order to obtain the total signal propagation delay from one master to one specific slave, the above mentioned signal propagation delay (in cascaded structures: repeatedly, if applicable) and the signal propagation delay of all fibre optics sections have to be taken into consideration (see an example in ACP 1703 Platforms Configuration Automation Units and Automation Networks) Power Supply Operating voltage VDC, typ. 0.5W.. 1W (depending on the set line-idle state) Mechanics and Connectors Optical interfaces Ring channel 1 (, X1/X2) channel 2 (, X3/X4) channel 3 (CH3, X5/X6) Star / Tree channel 1 (, X1/X2) channel 2 (, X3/X4) channel 3 (CH3, X5/X6) Electrical interface DIP switch Dimensions Weight Power to be supplied by PS-663x or PS-6621 Multimode optical fibre (2) Multimode optical fibre (2) Multimode optical fibre (1), (2) Multimode optical fibre (1), (2) Multimode optical fibre (1), (2) Multimode optical fibre (1), (2) channel4 (, X8) RJ45 8-pin according to IEC switches ST compatible ST compatible ST compatible ST compatible ST compatible ST compatible 131 x 63 x 73 mm (H x W x D, dimensions w/o DIN rail) Approx. 160 g ACP 1703 Ax 1703, CM

10 Engineering Front View CM CM-0821-A 10 ACP 1703 Ax 1703, CM-0821

11 CM-0821-B / -C / -D Connectors CM , CM-0821-A, CM-0821-B / -C / -D ACP 1703 Ax 1703, CM

12 Settings CM ACP 1703 Ax 1703, CM-0821

13 CM-0821-A ACP 1703 Ax 1703, CM

14 CM-0821-B / -C / -D 14 ACP 1703 Ax 1703, CM-0821

15 Literature ACP 1703 Platforms Configuration Automation Units and Automation Networks Data Sheet SM-x551/PROTOCOL Data Sheet CM-0822 Data Sheet CM-0823 Data Sheet PS-663x DC MC MC MC MC ACP 1703 Ax 1703, CM

16 16 ACP 1703 Ax 1703, CM-0821