D4 DCM spec eng

D4 DCM spec eng
Serial Data Communications Module
Data
Communications
Module
D4-DCM <--->
Overview
Extra communications
port
All DL405 CPUs offer at least two built-in
communication ports. (The D4-450 even
has four ports.) However, if even more
communication ports are needed, additional Data Communication Modules can
be added. As an extra communication
port, the DCM has specifications identical
to port 1 on the DL405 CPUs. Whatever
can be connected to port 1 of the DL405
CPU can be connected to the DCM, just
make sure the device has a DL405
compatible driver. This allows additional
connections of devices, such as operator
interfaces, personal computers, etc. Since
the DCM does not require any programming, you can set the DCM communication parameters, connect the cables, and
start transferring data.
The DL405 Data Communication Module
(DCM) is a general purpose communications interface for the DL405 family of
PLCs. This module is primarily used for
three reasons:
• Extra general purpose communications port to
connect a personal computer, operator interface, etc.
• Network interface to a DirectNET network
• Network interface to a Modbus network using
the RTU protocol as slave.
Online/
Offline
Switch
Address
Selection
Switch
DIP Switches for communications
and Protocol Setup
Specifications
Module Type
Modules per CPU
Intelligent
Communications
RS232C/422, DirectNET, SIMATIC®TI405™, or Modbus (slave only) RTU protocol.
Baud rate selectable from 300 to 38.4K baud. Odd or no parity. HEX or ASCII mode
Recommended Cable
Field Wiring Connector
Internal Power
Consumption
Operating Environment
Manufacturer
Belden 9729 or equivalent (for RS422)
7 Maximum, any slot in CPU Base
25 Pin D-shell connector
500mA maximum at 5VDC, (supplied by base power supply)
0°C to 60°C (32°F to 140°F), 5% to 95% humidity (non-condensing)
Koyo Electronics
DCM as auxiliary port
Connect the DCM to our
MDM-TEL serial modem. See
the Communication Products
section of this catalog for
details on the modem.
RS232C/RS422
Communication Port
6–30
PLC Products
1 - 80 0 - 633 - 0405
Serial Data Communications Module
PLC
Overview
DL05/06
PLC
DirectNET network
interface
The DCM can be used as a network interface for applications requiring data to be
shared between PLCs, or between PLCs
and an intelligent device such as a host
computer. The DCM connects easily to
DirectNET. This network allows you to
upload or download virtually any type of
system data including timer/counter data,
I/O information, and V-memory information from any of our PLCs or compatible
PLC. The DCM allows the DL405 PLC to
function as a master or a slave of
DirectNET.
Network Master - The DCM allows the
DL405 to serve as a master of a
DirectNET Network. The DCM takes
communication requests issued from the
PLC program (the network part of the
program can be very simple, as few as
seven words) and automatically converts
these requests into network commands to
read data from or write data to another
PLC on the network. This capability also
allows a peer to peer configuration of two
DL405 systems with DCMs. For other
options,
consider
the
H4-ECOM/ECOM100 modules.
Network Slave - All DL405 CPUs have a
built-in network slave port. If this port is
occupied, a DCM can be added to
provide an additional network slave port.
In this case, the DCM "listens" to the
network for any messages containing the
DCM’s address. The DCM deciphers the
network commands, carries out the
request to read or write data, and sends
confirmation and/or information to the
master station. Since the DCM does not
require any programming, you can set the
DCM
communication
parameters,
connect the cables and start transferring
data.
Master/slave Network
DL105
PLC
DL405
DCM as master
DL205
PLC
DL305
PLC
DL405
PLC
DCM slave
D2-260 slave
Field I/O
Software
DL405 CPU
(bottom port)
D3-350 slave
C-more
HMIs
Other HMI
Peer network
AC Drives
Motors
Steppers/
Servos
Motor
Controls
DCM as master
DCM as slave
Proximity
Sensors
Photo
Sensors
Modbus master
Limit
Switches
Modbus network using
RTU protocol
Encoders
Pushbuttons/
Lights
Process
In a slave station...
responds to network requests
Relays/
Timers
Comm.
DL405 slave with DCM
TB’s &
Wiring
Modbus interface
Power
The DCM can be used as a slave station
interface to connect your DL405 system to
the Modbus network using the Modbus
RTU protocol. The host system must be
capable of issuing the Modbus
commands to read or write the appropriate data.
w w w. a u to m at i o n d i re c t . c o m / d l 405
Enclosures
Appendix
Part Index
PLC Products
6–31
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