SOMANET Com EtherCAT

A.4

B.1

B.2

Overview

SOMANET Com EtherCAT it is the smallest full-fledged EtherCAT controller board available. Different than other compact EtherCAT solutions, having Ethernet transceivers and magnetics on-board, Com EtherCAT immediately provides safe signaling over common 100BASE-TX distances using SFTP cables. SOMANET Com EtherCAT provides all the necessary hardware to integrate EtherCAT slave nodes on a network. Due to the master/slave communication model of EtherCAT, a master application is required, which usually runs on a PC.

The board’s main components are the SOMANET Com Core Connector, the ET1100 EtherCAT Slave Controller, a Flash memory and the hardware of each EtherCAT port. Each port combines an Ethernet transceiver, Ethernet magnetics and an Ethernet connector

Tip

Synapticon recommends the Linux-based IgH EtherCAT Master which source code is available and licensed under the GPLv2 license.

../../../../../_images/COMETHERCAT_BOARD.png

Technical Specs

General Specifications

General Specifications
Number of EtherCAT ports 2
FMMU’s 8
SYNC manager 8
Distributed clocks Yes (64bits)
DPRAM 8 kbyte
Configuration memory 16 kbyte
Interface to Core board 16 bit
Typical power consumption 500 mW
Distributed SRAM size 4x 64 kByte
Ethernet connectors Molex PicoBlade 5-pin
Ethernet magnetics on-board Yes
Supply voltage 3.3 V DC*

* Provided by Core via IF1 connector.

Absolute Maximum Ratings

Ratings
Property Min Average Max Unit
Vin 2.97 3.3 3.63 V
Power consumption 330 790 1155 mW
Storage temperature -65   105 °C
Ambient temperature -40   70 °C

Connectors

../../../../../_images/COMETHERCATIO.png

EtherCAT 1

Pin-out
Pin Name Type Function
1 TX+ O Differential transmit output
2 TX- O Differential transmit output
3 GND P Ground
4 RX+ I Differential receive input
5 RX- I Differential receive input

* Pin 1 is on left

EtherCAT 2

Pin-out
Pin Name Type Function
1 TX+ O Differential transmit output
2 TX- O Differential transmit output
3 GND P Ground
4 RX+ I Differential receive input
5 RX- I Differential receive input

* Pin 1 is on left

Ports Definition

Pin Designator XS1-L16-128 ET1100
1 3V3    
2 X0D29 P8C3 ADR[11]
3 3V3    
4 X0D28 P8C2 ADR[10]
5 3V3    
6 X0D30 P8C4 ADR[12]
7 3V3    
8 X0D32 P8C6 ADR[14]
9 3V3    
10 X0D24 P1I0 IRQn
11 3V3    
12 X0D37 P8D1 ADR[1]
13 3V3    
14 X0D22 P1G0 SYNC[0]
15 3V3    
16 X0D40 P8D4 ADR[4]
17 3V3    
18 X0D13 P1F0 RESET_N
19 3V3    
20 X0D17 P8B3 DATA[11]
21 3V3    
22 X0D14 P8B0 DATA[8]
23 3V3    
24 X0D19 P8B5 DATA[13]
25 3V3    
26 X0D15 P8B1 DATA[9]
27 3V3    
28 X0D08 P8A6 DATA[6]
29 3V3    
30 X0D21 P8B7 DATA[15]
31 3V3    
32 X0D09 P8A7 DATA[7]
33 3V3    
34 X0D25 P1J0 BUSYn
35 3V3    
36 X0D07 P8A5 DATA[5]
37 3V3    
38 X0D06 P8A4 DATA[4]
39 3V3    
40 X0D35 P1L0 RDn
Pin Designator XS1-L16-128 ET1100
41 GND    
42 X0D05 P8A3 DATA[3]
43 GND    
44 X0D43 P8D7 ADR[7]
45 GND    
46 X0D04 P8A2 DATA[2]
47 GND    
48 X0D02 P8A0 DATA[0]
49 GND    
50 X0D34 P1K0 WRn
51 GND    
52 X0D03 P8A1 DATA[1]
53 GND    
54 X0D20 P8B6 DATA[14]
55 GND    
56 X0D18 P8B4 DATA[12]
57 GND    
58 X0D23 P1H0 SYNC[1]
59 GND    
60 X0D16 P8B2 DATA[10]
61 GND    
62 X0D42 P8D6 ADR[6]
63 GND    
64 X0D41 P8D5 ADR[5]
65 GND    
66 X0D39 P8D3 ADR[3]
67 GND    
68 X0D38 P8D2 ADR[2]
69 GND    
70 X0D36 P8D0 CSn
71 GND    
72 X0D33 P8C7 ADR[15]
73 GND    
74 X0D31 P8C5 ADR[13]
75 GND    
76 X0D26 P8C0 ADR[8]
77 GND    
78 X0D27 P8C1 ADR[9]
79 GND    
80 CLK_25M * P1E0 OSC_IN

* 25MHz clock generated on Core C22. Make sure jumper on C22 is set correctly. The connector type used is Hirose DF40 80-pin, with the header (DF40C-80DP-0.4V(51)) on the Core module side and the receptacle (DF40HC(4.0)-80DS-0.4V(51)) on the Com side. The Process Data Interface is used to communicate with the SOMANET Core. Table 3 is showing the connector pin mapping between SOMANET Com EtherCAT and SOMANET Core modules.

Geometry & Dimensions

../../../../../_images/ECAT_main_dimensions.png

The maximum component height at the top side of Com EtherCAT is 1,6 mm, with the exception of the EtherCAT Port Connectors, which exceeds this with a height of 3,4mm. The maximum component height at the bottom side of Com EtherCAT is 2,45 mm, with the exception of the Core Connector, which exceeds this with a height of 4,05 mm. Please refer to the 3D models that are available to use within your mechanical design.

Download 3D Model

Revisions

There are two new revisions of this module:

B.1

B.2