Yamatake DIGITRONIK SDC40A User manual

DIGITRONIK
CPL COMMUNICATION
SDC40A/40G
User's Manual
No. CP-UM-1583E
Thank you for purchasing the SDC40A
/40G.
This manual contains information for
ensuring correct use of the SDC40A
/40G. It also provides necessary infor-
mation for installation, maintenance,
and troubleshooting.
This manual should be read by those
who design and maintain devices that
use the SDC40A/40G.
Be sure to keep this manual near by for
handy reference.

The DIGITRONIK®is a registered trademark of Yamatake Corporation.
Windows®, Windows NT®and Microsoft®are registered trademark of
Microsoft Co.,Ltd.
Other company names and product names listed in this manual are registered
trademark or trademark of respective companies.
1994 Yamatake Corporation ALL RIGHTS RESERVED
This product has been designed, developed and manufactured for general-purpose
application in machinery and equipment.
Accordingly, when used in applications outlined below, special care should be taken to
implement a fail-safe and/or redundant design concept as well as a periodic
maintenance program.
•Safety devices for plant worker protection
•Start/stop control devices for transportation and material handling machines
•Aeronautical/aerospace machines
•Control devices for nuclear reactors
Never use this product in applications where human safety may be put at risk.
RESTRICTIONS ON USE
REQUEST
Ensure that this User's Manual is handed over to the user before the
product is used.
Copying or duplicating this User's Manual in part or in whole is forbid-
den. The information and specifications in this User's Manual are sub-
ject to change without notice.
Considerable effort has been made to ensure that this User's Manual is
free from inaccuracies and omissions.
If you should find any inaccuracies or omissions, please contact
Yamatake Corporation.
In no event is Yamatake Corporation liable to anyone for any indirect,
special or consequential damages as a result of using this product.

The Role of This Manual
In all, 2 manuals have been prepared for the SDC40A Read the manual according to your specific requirements.
The following lists all the manuals that accompany the SDC40A and gives a brief outline of the manual: If you do
not have the required manual, contact Yamatake Corporation or your dealer.
DIGITRONIK CPL COMMUNICATION SDC40A/40G User's Manual
No.CP-UM-1583E
This manual is required reading for those using the CPL communications
functions of the SDC40A.
This manual describes an outline of CPL communications, wiring,
communications procedures and SDC40A communications data, how to
remedy trouble, and communications specifications.
Digitronik Line SDC40A Digital Indicating Controller
User's Manual No.CP-SP-1043E
The manual is provided with SDC40A.
People who are involved in hardware design to build the SDC40A into a
control panel and maintenance must read this manual.
This manual describes the outlines of hardware and controllers,
installation/wiring, maintenance/checking, troubleshooting measures and
the hardware specification.

1-1
RS-232C
RS-232C connection example
Slave
station
Master station
RS-485 connection example
Slave
station
Master station
Connection between master
station and slave station
RS-232C
RS-485 (5-wire system)
RS-232C/RS-485
converter
RS-485 connection example
Slave
station
Master station
Connection between master
station and slave station
RS-232C
CMC10L001A000
RS-485 (3-wire system)
(*2)
1. Communication functions
•In the RS-232C system, this instrument is connected with one master station (also called a host computer as
which a personal computer or the like is used) in the form of one to one.
In this system, only one instrument can communicate with the master station.
The "station address" must be set to make communication.
•In the RS-485 system, up to 31 instruments (see *1) can be connected with one master station. The “instrument
addresses” are then used to identify mate stations for communication
•The communication procedure and format are in common to the both RS-232C and RS-485.
•The communication protocol and format conform to the RS-232C and RS-485 interfaces.
•When the following procedure is completed during communication, various data for the instrument can be read
or written.
(1)The master station (host computer) transmits a request message to a slave station (instrument)
(2)The master station receives a response message from the slave station.
•Instructions from master station to slave station are classified into two types; “read” and “write”.
•The type of ready/write data can be optionally selected by “data address”.
•CPL (Controller Peripheral Link) communications network is the Yamatake Corporation's host-communications.
•The high-performance communication controller CMC410A102 is available for conversion between the RS-
232C and RS-485 interfaces.
(*1) When the master station is an MA500 DIM or CMC410, it can be connected to up to 16 slave stations.
(*2) The CMC10L001A000 communication controller is an RS-232C/RS-485 (3-wires type) converter
available from Yamatake Corporation.

2-1
2. Wiring
2 - 1 RS-232C Connection
The DIGITRONIK instrument with the RS-232C communication function is wired for communication as shown
below.
●Connection with the master station in the form of 1 to 1.
This instrument is provided with three communication terminals (RD, SD, and SG).
Data may not be output unless the other kind terminals of the master station side RS-
232C interface are short-circuited as shown in the figure below.
Usually, the pin array of the RS-232C connector of a personal computer, or the like is as
shown below (Terminal mode). In a rare case, pins (2) and (3), (4) and (5), and (6) and
(20) may be replaced with each other, respectively (MODEM mode).
Check the RS-232C pin array by referring to the instruction manual for the host
computer.
Example of connection using Yamatake Corporation CBL232FNZ02
Note
Cable catalog No. : CBL232FNZ02
(2m cable for RS-232C, 9-pin, D-Sub socket, contact - crimp style terminal)
●RS-232C connector signals
(9 pins) Example: IBM and compatibles
(25 pins) Example: PC-9800 Series (14 pins) Example: PC-9821Ne
SG
RD
SD
RS
CS
DR
CD
ER
RD
SD
DIGITRONIK instrument (slave station)Host computer (master station)
2
3
5
6
1
4
SG
7
8
1CDDCD ←
2RDRxD ←
3SDTxD →
4ERDTR →
5SGGND
6DRDSR ←
7RSRTS →
8CSCTS ←
Signal Direction
Host-station
Pin No. JIS Code Name
1—FG
2SDTxD →
3RDRxD ←
4RSRTS →
5CSCTS ←
6DRDSR ←
7SGGND
8CDDCD ←
20 ER DTR →
Signal Direction
Host-station
Pin No. JIS Code Name
1RDRxD ←
2DRDSR ←
3CDDCD ←
4CSCTS ←
9SDTxD →
10 RS RTS →
11 ER DTR →
13 SG GND
14 SG GND
Signal Direction
Host-station
Pin No. JIS Code Name

2-2
2. Wiring
2 - 2 RS-485 Connection
■5-wire system
When the DIGITRONIK instruments with the communication functions in
compliance with the RS-485 are used in the 5-wires system, they are connected,
for example, as follows:
Connect two terminating resistors of 150Ω5%, 1/2W min. to the instrument at
each end of the transmission line. Also connect the shield wires to FG at one
place.
In the 5-wires system, the Yamatake Corporationl CMC10L can be used as a
converter in the master station. It can also be used as a converter in the slave
station when the number of the slave stations is only one, but cannot be used as a
converter in a slave station when two or more slave stations are used.
SDA
SDB
RDA
RDB
SG
FG
SDA
Shielded
cable
SDB
RDA
RDB
SG
FG
Shielded cable
Shielded cable
Master station
Terminating
resistor
Terminating
resistor
Terminating
resistor
Terminating
resistor
SDA
SDB
RDA
RDB
SG
FG
RDA
RDB
SDA
SDB
SG
FG
5-wire system
DIGITRONIK instrument
(slave station)
5-wire system
DIGITRONIK instrument
(slave station)
5-wire system
DIGITRONIK instrument
(slave station)

2-3
2. Wiring
■3-wire system
The DIGITRONIK instruments with the communication functions in compliance
with the RS-485 can also be used in the 3-wires system. An example of
connection methods in such a case is shown below.
Connect one terminating resistor of 150Ω5%, 1/2W min. to the instrument at
each end of the transmission line.
Also connect the shield wires to FG at one place.
In the 3-wires system, the Yamatake Corporation CMC10L cannot be used as a
converter in the master station or slave station.
In an instrument equipped with only three RS-485 terminals, the asterisked (*)
wiring is done internally.
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