DL-340 CPU Configuration [an error occurred while processing this directive]

 

Page Contents:

DIP Switch Settings

Switch

OFF State
ON State
Description

1

RAM EEPROM or UVPROM This switch should match the type of chip in the memory socket.
You must set the jumpers also to properly configure the memory type.

2

Non-Retentive Retentive This switch determines if the internal relays 340-373 are set retentive.

3, 4, 5 

 BAUD   SW3  SW4  SW5

  300   OFF  ON   ON
  600   OFF  OFF  ON
 1200   ON   ON   OFF
 2400   ON   OFF  OFF
 4800   OFF  ON   OFF
 9600   OFF  OFF  OFF
19200   ON   ON   ON
38400   ON   OFF  ON
These switches determine the baud rate for Port 1.

6, 7 

MODE                SW6  SW7

DirectNet Slave     OFF  OFF
DirectNet Master    OFF  ON
DirectNet Peer      ON   OFF
Modbus® RTU Slave   ON   ON
These switches determine the protocol mode for Port 2.

8

  NOT USED

 

Memory Type Selection Jumpers

Jumper Position

Memory Type

1

no chip (using RAM only)
or
EEPROM (write Protected)

2

EEPROM (write enabled)

3

UVPROM

 

Register Settings

Register

Function

R771

Port 2 Secondary Address (MSB)

R772

Port 2 Secondary Address (LSB)

R773

Port 2 baud rate. 
 BAUD   R773

  300   1
  600   2
 1200   3
 2400   4
 4800   5
 9600   6
19200   7
38400   8
 9600   any other value

R774

Port 2 RTS Lead Time (x20ms)

R775

Port 2 RTS Lag Time (x20ms)

R776

Port 1 RTS Lead Time (x20ms)

R777

Port 2 RTS Lag Time (x20ms)

 

Special Relays

Special Relay

OFF Function
ON Function

C1072

Port 2 Parity NONE Port 2 Parity ODD

C1076

Port 2 HEX Mode Port 2 ASCII Mode

C1077

Port 1 HEX Mode Port 1 ASCII Mode

 

Port 1 Address Selection

Rotary Dial

Function

SW3

Port 1 Address (LSB)

SW4

Port 1 Address (MSB)

SW3 is closest to the DIP switches.

When the FIXED/USER switch on the front of the CPU is set to FIXED then the address is set to 1.

 

NOTES

To set the address and baud rate of port 2 use the following code which sets the address=5 and the speed=9600. 
    STR     C374
    DSTR    K6
    DOUT1   R773
    DSTR    K0
    DOUT1   R771
    DSTR    K5
    DOUT1   R772
When setting the MODBUS® address on Port 2, the address is entered in its DECIMAL form, with the two low order digits in R772 and the high order digits in R771. For example, to set the address to 24 (18 HEX) use the following code: 
    STR     C374
    DSTR    K0
    DOUT1   R771
    DSTR    K24
    DOUT1   R772

MODBUS® is a registered trademark of Modicon, Inc.