Campbell-scientific MD485 RS-485 Multidrop Interface Manual de usuario

MD485 RS-485Multidrop InterfaceRevision: 10/10Copyright © 2003-2010Campbell Scientific, Inc.

MD485 RS-485 Multidrop Interface The baud rate for each port is set independently, so they can be different. However, in some instances, mismatched

MD485 RS-485 Multidrop Interface (-)(+)(-) (+) Connect at oneend only to chassis GND. FIGURE 3. RS-485 Connections and Grounding 3.4 Serial Cables

MD485 RS-485 Multidrop Interface Step 1 – Set Up Base MD485 a. Connect serial cable from PC COM port to base MD485 RS-232 port. b. Plug transformer

MD485 RS-485 Multidrop Interface Current dataloggers and wiring panels (not mentioned in Table 2) provide 12 V on pin 8. For older products not lis

MD485 RS-485 Multidrop Interface b. Set the Maximum Baud Rate for 9600 baud which is the rate at which the MD485 communicates by default. The datalo

MD485 RS-485 Multidrop Interface The base MD485 is connected to the computer's COM port with a serial cable. A transformer supplies +12 VDC powe

MD485 RS-485 Multidrop Interface active ports, while the remote MD485 has the active ports set to RS-485 and CS I/O. With the MD485s configured as tr

MD485 RS-485 Multidrop Interface SCADA-PC SCADA-PC MODBUSTo Wall Transformer FIGURE 10. Transparent Point-to-Multipoint Network 5.2 MD9 Emula

MD485 RS-485 Multidrop Interface 5.3 PakBus Networking When configured to use PakBus protocol, the MD485 makes use of the PakBus/Mdrop protocol on th

MD485 RS-485 Multidrop Interface 7. Call-back Datalogger initiated communication, commonly referred to as “call-back,” is possible through MD485s in

Warranty and Assistance The MD485 RS-485 MULTIDROP INTERFACE is warranted by Campbell Scientific, Inc. to be free from defects in materials and workma

MD485 RS-485 Multidrop Interface The RS-485 specification also recommends connecting a 100 ohm resistor of at least 0.5 W in series between each node’

MD485 RS-485 Multidrop Interface • In most instances, no termination is required. • If large ground potentials exist, use optical isolation. (B&

MD485 RS-485 Multidrop Interface 16

Appendix A. Phone to MD485 Network It is possible to access an MD485 network via telephone when the network is miles from the PC. See Figure A-1.

Appendix A. Phone to MD485 Network 1. HARDWARE REQUIREMENTS a. MD485s b. COM220 c. PS100 with A100 d. Transformer (CSI Item # 9591) or solar panel

Appendix A. Phone to MD485 Network 3. MD9 EMULATION (POINT-TO-MULTIPOINT) PC-Modem ----COM220-PS100 with A100-MD485 ----------MD485-DL1 ----------M

Appendix A. Phone to MD485 Network FIGURE A-2. LoggerNet Phone to MD485 MD9 Emulation Setup MD485 Configuration a. Base MD485 1) Active Ports –

Appendix A. Phone to MD485 Network COM220 and the base MD485 CS I/O port. Connect the site phone line to COM220. Connect power to PS100. When you

Appendix A. Phone to MD485 Network A-6 This is a blank page.

Appendix B. RF401 to MD485 Network Where an RF401 to MD485 network is desired, the following configurations will provide access to an MD485 network v

MD485 Table of Contents PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for

Appendix B. RF401 to MD485 Network 1. HARDWARE REQUIREMENTS a. MD485s b. RF401s c. PS100 with A100 d. Transformer (CSI Item #15966) for base RF401

Appendix B. RF401 to MD485 Network 3. MD9 EMULATION (POINT-TO-MULTIPOINT) PC-RF401 ----RF401-PS100 with A100-MD485 ----------MD485-DL1 ----------

Appendix B. RF401 to MD485 Network MD485 Configuration a. Base MD485 1) Active Ports – “CS I/O and RS-485” 2) Communication Mode – “MD9 Emula

Appendix B. RF401 to MD485 Network 2. TRANSPARENT COMMUNICATION (POINT-TO-POINT) PC-RF401----RF401--null modem--MD485---MD485-DL LoggerNet Setup a. S

Appendix B. RF401 to MD485 Network b. ComPort_1 – default settings c. MD9Base – defaults d. MD9Remote – Address: “1“ e. MD9Remote_2 –

Appendix B. RF401 to MD485 Network FIGURE B-3. LoggerNet PakBus Networking Setup MD485 Configuration a. Base MD485 1) Active Ports – “RS-232 a

Appendix B. RF401 to MD485 Network B-8 5. HARDWARE After configuring LoggerNet or PC208W, the RF401s and the MD485s you are ready to set up hardware.

Appendix C. MD485 to RF401 Network Where an MD485 to RF401 network is desired, the following configurations will provide access to an RF401 network v

Appendix C. MD485 to RF401 Network 1. HARDWARE REQUIREMENTS a. MD485s b. RF401s c. PS100 with A100 d. Transformer (CSI Item #15966) for base MD485

Appendix C. MD485 to RF401 Network 3. MD9 EMULATION PC-MD485----MD485-PS100 with A100-RF401---RF401-DL LoggerNet Setup a. Setup: ComPort_1 MD9Base

MD485 Table of Contents C. MD485 to RF401 Network ...C-1 C.1 Connection using a PS100 with A100...

Appendix C. MD485 to RF401 Network When you turn on the PS100 supply, the MD485 and the RF401 receive 12V power and you will see the LEDs light in th

Appendix C. MD485 to RF401 Network b. Remote MD485 1) Active Ports – “RS-232 and RS-485” 2) Communication Mode – “Transparent Communication”

Appendix C. MD485 to RF401 Network RF401 Configuration The RF401s may be left in their default settings. However, if there is a neighboring RF401 ne

Appendix C. MD485 to RF401 Network 4. HARDWARE After configuring LoggerNet or PC208W, the RF401s and the MD485s you are ready to set up hardware. Co

Appendix C. MD485 to RF401 Network C-8 This is a blank page.

Appendix D. Digital Cellular Modem to MD485 Network It is possible to access an MD485 network via a digital cellular modem when the network is miles

Appendix D. Digital Cellular Modem to MD485 Network 2. TRANSPARENT COMMUNICATION (POINT-TO-POINT) PC--—Cell Tower--Raven—null modem—MD485—MD485-DL

Appendix D. Digital Cellular Modem to MD485 Network 3. MD9 EMULATION (POINT-TO-MULTIPOINT) PC--—Cell Tower--Raven—null modem—MD485----MD485-DL1

Appendix D. Digital Cellular Modem to MD485 Network b. IPPort – Internet IP address/domain name and the Port number (the Raven template file configu

Appendix D. Digital Cellular Modem to MD485 Network 2. TRANSPARENT COMMUNICATION PC-Modem----Cell Tower Redwing-null modem-MD485-MD485-DL LoggerNet

MD485 Table of Contents Tables 1. Specifications...1 2. L

Appendix D. Digital Cellular Modem to MD485 Network c. TAPIRemote – input digital cellular modem's phone number d. MD9Base – defaults e.

Appendix D. Digital Cellular Modem to MD485 Network b. Remote MD485s 1) Active Ports – “CS I/O and RS-485” 2) Communication Mode – “MD9 Emulati

Appendix D. Digital Cellular Modem to MD485 Network FIGURE D-3. LoggerNet Digital Cellular Modem to MD485 PakBus Networking Setup MD485 CONFIGURATI

Appendix D. Digital Cellular Modem to MD485 Network Remote MD485s normally connect to datalogger CS I/O ports via SC12 cables. Powering up the datal

Appendix D. Digital Cellular Modem to MD485 Network D-10 This is a blank page.

Appendix E. NL100 to MD485 Network It is possible to access an MD485 network via a TCP/IP network using an NL100. See Figure E-1. To wall transfor

Appendix E. NL100 to MD485 Network b. IPPort – Internet IP Address – NL100 IP address : NL100 RS-485 serial server port number. (The NL100 RS-485

Appendix E. NL100 to MD485 Network PC -------NL100-------MD485 ----------MD485-DL1 -----------MD485-DL2 LoggerNet Setup a. Setup: IPPort MD9Base

Appendix E. NL100 to MD485 Network 4. PAKBUS NETWORKING PC ---------------NL100 ----------MD485-DL1 -----------MD485-DL2 LoggerNet Setup a. Setup:

Appendix E. NL100 to MD485 Network FIGURE E-3. LoggerNet NL100 to MD485 PakBus Networking Setup MD485 Configuration 5) Active Ports – “CS I/O an

MD485 Table of Contents iv

Appendix E. NL100 to MD485 Network E-6 5. HARDWARE After configuring LoggerNet or PC208W, the NL100 and the MD485(s), you are ready to set up hardwar

Appendix F. MD485 to CC640 Digital Camera The MD485 is used with the CC640 Digital Camera when the distance between the datalogger is greater than 25

Appendix F. MD485 to CC640 Digital Camera F-2 This is a blank page.

Appendix G. MD485 to AVW200 Interface The MD485 is used with the AVW200 Interface for situations where wireless communication is impractical and the

Appendix G. MD485 to AVW200 Interface MD485 Configuration Each MD485 in the network must be configured with the following settings (see Figure G-2):

Appendix H. MD485 Port Pin Descriptions CS I/O Port The CS I/O port is Campbell Scientific's input/output port. It is not a standard RS-232 pin

Appendix H. MD485 Port Pin Descriptions H-2 RS-232 CONNECTOR, 9-PIN D-SUB FEMALE PIN I/O FUNCTION 1 +5V DCD 2 O RXD 3 I TXD 4 NC DTR 5 GND GND 6

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MD485 RS-485 Multidrop Interface 1. Introduction The MD485 is an intelligent RS-485 interface. It is configurable to use any two of its three interf

MD485 RS-485 Multidrop Interface 3. System Components 3.1 MD485 RS-485 Multidrop Interface 3.1.1 Ground Lug The MD485 has a GND lug (see Figure 1).

MD485 RS-485 Multidrop Interface 3.1.3 Configuring the MD485 The MD485 is typically configured using the Device Configuration (DevConfig) utility, wh