Control Lines

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The following lines of the EM1000 module (located on the NB10x0 network board) are used to control the IB1004 + SB1004.

In the tables below, "output" means an output of the EM1000, and "input" means an input of the EM1000.

A/D converter control

For more information see A/D Converter.

Line

Function

Corresponding

EM1000 I/O

IC1000 cable line

DI (input)

Serial data in

GPIO12

25

DO (output)

Serial data out

GPIO13

27

CLOCK (output)

Serial clock

(LOW idle state)

GPIO2

5

C/D (output)

Register selection:

HIGH - data register

LOW - control register

GPIO40

6

RFS (output)

Receive frame sync

(Active LOW)

GPIO32

30

TFS (output)

Transmit frame sync

(active LOW)

GPIO33

28

CHS0 (output)

Channel selection, bit 0

GPIO41

8

CHS1 (output)

Channel selection, bit 1

GPIO42

10

CHS2 (output)

Channel selection, bit 2

GPIO43

12

D/A converter control

For more information see D/A Converter.

Line

Function

Corresponding

EM1000 I/O

IC1000 cable line

DATA (output)

Serial data out

GPIO11

23

CLOCK (output)

Serial clock

(LOW idle state)

GPIO1

3

WR (output)

Data latch strobe

(active LOW)

GPIO34

26

EN (output)

Output enable:

HIGH (or input*) - disabled

LOW - enabled

GPIO35

24

*GPIO line configured as input (default state)

Relay control

For more information see Relays.

Line

Function

Corresponding

EM1000 I/O

IC1000 cable line

RELAY1 (output)

Relay 1 control:

HIGH (or input*) - relay off

LOW - relay on

GPIO36

22

RELAY2 (output)

Relay 2 control:

HIGH (or input*) - relay off

LOW - relay on

GPIO37

20

*GPIO line configured as input (default state)

RS232/485 port control

For more information see RS232/485 Port.

Line

Function

Corresponding

EM1000 I/O

IC1000 cable line

RX (input)

Receive line of the serial port

GPIO8/RX0

17

TX (output)

Transmit line of the serial port

GPIO9/TX0

19

MODE (output)

Mode selection:

HIGH - RS485

LOW (or input*) - RS232

GPIO44

14

DIR (output)

Direction control in RS485 mode:

HIGH - output

LOW - input

GPIO0/RTS0

1

*GPIO line configured as input (default state)

LED control

For all LED control lines:

HIGH (or input*) - LED off

LOW - LED on

For more information see LED Control.

LED #, color

(LB1001)

Corresponding EM1000 I/O

IC1000 cable line

#8, red

GPIO24

46

#7, green

GPIO25

44

#6, red

GPIO26

42

#5, green

GPIO27

40

#4, red

GPIO28

38

#3, green

GPIO29

36

#2, red

GPIO30

34

#1, green

GPIO31

32

*GPIO line configured as input (default state)