Campbell MD9 Instruction Manual Download | Manualshive

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Appendix C. Setting the Station ID

C-2

SWITCHES

SWITCHES

SWITCHES

ID

1234

5678

ID

1234

5678

ID

1234

5678

40

0001

0100

83

1100

1010

126

0111

1110

41

1001

0100

84

0010

1010

127

1111

1110

42

0101

0100

85

1010

1010

128

0000

0001

129

1000

0001

172

0011

0101

215

1110

1011

130

0100

0001

173

1011

0101

216

0001

1011

131

1100

0001

174

0111

0101

217

1001

1011

132

0010

0001

175

1111

0101

218

0101

1011

133

1010

0001

176

0000

1101

219

1101

1011

134

0110

0001

177

1000

1101

220

0011

1011

135

1110

0001

178

0100

1101

221

1011

1011

136

0001

0001

179

1100

1101

222

0111

1011

137

1001

0001

180

0010

1101

223

1111

1011

138

0101

0001

181

1010

1101

224

0000

0111

139

1101

0001

182

0110

1101

225

1000

0111

140

0011

0001

183

1110

1101

226

0100

0111

141

1011

0001

184

0001

1101

227

1100

0111

142

0111

0001

185

1001

1101

228

0010

0111

143

1111

0001

186

0101

1101

229

1010

0111

144

0000

1001

187

1101

1101

230

0110

0111

145

1000

1001

188

0011

1101

231

1110

0111

146

0100

1001

189

1011

1101

232

0001

0111

147

1100

1001

190

0111

1101

233

1001

0111

148

0010

1001

191

1111

1101

234

0101

0111

149

1010

1001

192

0000

0011

235

1101

0111

150

0110

1001

193

1000

0011

236

0011

0111

151

1110

1001

194

0100

0011

237

1011

0111

152

0001

1001

195

1100

0011

238

0111

0111

153

1001

1001

196

0010

0011

239

1111

0111

154

0101

1001

197

1010

0011

240

0000

1111

155

1101

1001

198

0110

0011

241

1000

1111

156

0011

1001

199

1110

0011

242

0100

1111

157

1011

1001

200

0001

0011

243

1100

1111

158

0111

1001

201

1001

0011

244

0010

1111

159

1111

1001

202

0101

0011

245

1010

1111

160

0000

0101

203

1101

0011

246

0110

1111

161

1000

0101

204

0011

0011

247

1110

1111

162

0100

0101

205

1011

0011

248

0001

1111

163

1100

0101

206

0111

0011

249

1001

1111

164

0010

0101

207

1111

0011

250

0101

1111

165

1010

0101

208

0000

1011

251

1101

1111

166

0110

0101

209

1000

1011

252

0011

1111

167

1110

0101

210

0100

1011

253

1011

1111

168

0001

0101

211

1100

1011

254

0111

1111

169

1001

0101

212

0010

1011

255

1111

1111

170

0101

0101

213

1010

1011

171

1101

0101

214

0110

1011

«
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Summary of Contents for MD9

Page 1: ...INSTRUCTION MANUAL MD9 Multidrop Interface Revision 5 03 C o p y r i g h t c 1 9 8 7 2 0 0 3 C a m p b e l l S c i e n t i f i c I n c...

Page 2: ...her warranties expressed or implied including warranties of merchantability or fitness for a particular purpose CAMPBELL SCIENTIFIC INC is not liable for special indirect incidental or consequential d...

Page 3: ...on 1 3 Software and Datalogger Compatibility 3 4 ID and Baud Rate Selection 3 5 Maximum Number of Dataloggers and Coax Length 4 6 Telephone to MD9 Network 5 7 Operation 6 A Cable Specifications and So...

Page 4: ...MD9 Multidrop Interface Table of Contents ii 4 1 ID Switch and Baud Rate Selection Jumpers 4 6 1 Telephone to MD9 Conversion 6 B 1 Break Address Timing Diagram B 1 This is a blank page...

Page 5: ...ories SC12 cable BNC T connector Voltage 5 Volts from datalogger or SC532 A Current State 0 Standby 1 2 mA State 1 Active 17 mA when transmit line drives network 80 mA State 2 Sleep 3 mA State 3 Pull...

Page 6: ...ng computer and end last datalogger of the network must be terminated with 75 ohm Coax Terminators in order to prevent signal reflection from one end of the cable to the other Place terminators on the...

Page 7: ...r 700X Control Module SN1670 or higher 21Xs and 700Xs with lower SNs require a resistor modification which permits the respective 5 Volt power supplies to source enough current to operate an MD9 Conta...

Page 8: ...when necessary All MD9s in a system must be set at the SAME baud rate 9600 Baud 1200 Baud 300 Baud A B Short A B Open A B Short C D Short C D Short C D Open FIGURE 4 1 ID Switch and Baud Rate Selectio...

Page 9: ...the battery voltage level The PS512M includes an AC wall transformer for AC operation A solar panel optional may be used if AC is unavailable A PS512M with a serial number less than 1712 does not supp...

Page 10: ...n MD9 See the timing diagram in Appendix C Upon detecting activity on the coax line remote MD9s convert from State 0 to State 2 State 2 is a sleep mode in which the MD9 begins a timing routine to dete...

Page 11: ...dataloggers in a network have been interrogated When all data for a particular time period has been collected and stored by the computer the computer s DTR line is released causing the local MD9 to r...

Page 12: ...MD9 Multidrop Interface 8 This is a blank page...

Page 13: ...Conductor 20 AWG solid copper 032 Jacket Material PVC Jacket O D 235 Shield Braided tinned copper 100 coverage Resistance 10 1000 Capacitance 16 2pf ft Impedance 75 Ohms Attenuation at 1 MHz 0 29 db...

Page 14: ...This is a blank page...

Page 15: ...The marking time must be greater than one times the inverse of BR and the marking time and ADDRESS must be completed within 100 msec This is to say that a 9600 baud the BREAK must be greater than 1 1...

Page 16: ...This is a blank page...

Page 17: ...10 12 0011 0000 55 1110 1100 98 0100 0110 13 1011 0000 56 0001 1100 99 1100 0110 14 0111 0000 57 1001 1100 100 0010 0110 15 1111 0000 58 0101 1100 101 1010 0110 16 0000 1000 59 1101 1100 102 0110 0110...

Page 18: ...000 1001 188 0011 1101 231 1110 0111 146 0100 1001 189 1011 1101 232 0001 0111 147 1100 1001 190 0111 1101 233 1001 0111 148 0010 1001 191 1111 1101 234 0101 0111 149 1010 1001 192 0000 0011 235 1101...

Page 19: ...e can be modified to connect to the datalogger s power terminals as follows 1 Unplug field cable from datalogger and SC532A 2 Cut off DB9 connector 3 Remove cable sheath exposing positive RED wire and...

Page 20: ...This is a blank page...

Page 21: ...This is a blank page...

Page 22: ...campbellsci com br suporte campbellsci com br Campbell Scientific Canada Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientifi...

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