Agilent Technologies manual L4400 User’s Guide 267

L4433A example program segments, 116 L4433A hardware description, 120 L4433A instrument overview, 114 L4433A SCPI command summary, 115 L4433A simplified schematic (one-wire

mode), 126

L4433A simplified schematic (two-wire mode), 122

L4433A terminal block (one-wire mode), 128 L4433A terminal block (two-wire mode), 124 L4437A

connector pinouts, 135 power-fail jumper, 130 snubber circuitry, 136 terminal block, 136

L4437A example programs, 133 L4437A hardware description, 134 L4437A SCPI command summary, 132 L4437A simplified schematic, 134 L4437A temperature sensor, 130

L44387 instrument overview, 130 L4445A

channel numbering, 149 channel pairing, 153 continuous drive mode, 152 default and reset states, 158 description, 144 dimensions, 193 distribution boards, 160 drive modes, 151

dual drive mode, 153

example configurations, 145, 146 execution times, 155

I/O Access LED, 146

LED position indicators, 155 open-collector drive mode, 151 pulse drive mode, 154 recovery time, 154

settling time, 154 single drive mode, 152 switch verification, 155 TTL drive mode, 151

L4445A example programs, 194 L4445A SCPI command summary, 142 L4450A

buffered input, 218 buffered output, 216 byte ordering, 220 channel drive voltage, 208

channel numbering and width, 206 channel polarity, 208

channel threshold, 208 channel width, 208 clock output, 224 connector pinouts, 224 counter operations, 222

deleting traces from memory, 218 external pullups, 208 frequency measurements, 223 handshake line drive mode, 210 handshake line output voltage level, 210 handshake line polarity, 210

handshake line threshold, 210 handshaking, 209 handshaking digital data, 209 initiated measurement mode, 223 interrupt lines, 219

memory operations, 216 pattern matching, 221 reading digital data, 206 synchronous handshake mode, 211 totalizer mode, 222

writing digital data, 207 L4450A digital I/O operations, 206 L4450A hardware description, 205 L4450A SCPI command summary, 198 L4451A

analog output adjustments, 257 analog output verification test, 255 calibration count, 252 calibration interval, 248 calibration message, 252 calibration procedure., 253 calibration security, 249 calibration time, 249

connector pinouts, 232 example programs, 228 overload fuse, 224 performance verification, 254 remote sensing, 224 security code, 249

sense terminals, 224 simplified block diagrams, 231

L4451A hardware description, 224 L4451A SCPI command summary, 226 L4452A

analog output, 236 calibration count, 252 calibration interval, 248 calibration message, 252 calibration procedure, 261 calibration security, 249 calibration time, 249 connector pinouts, 244 DAC output adjustment, 262 DAC output verification test, 262 digital I/O, 236

example programs, 241 hardware description, 236 performance test verification, 261 security code, 249

simplified block diagram, 243 totalizer input, 236

L4452A SCPI command summary, 237 labels, 68

LAN, 48

LAN cables, 18

private network connections, 19 site network connections, 20

LAN default states, 45 LAN network

considerations, 17 selecting, 17

LAN reset, 48

Index

LAN settings

editing using the Web interface, 30 latch mode (alarms), 88

LED descriptions, 48 LED position indicators

L4445A, 155 limits

alarms, 84

linking multiple modules, 118 locating instruments, 22 lost calibration code, 250

M

manual scanning, 73 master module, 144 measurement functions

L4421A, 102 memory

stored states, 96 viewing alarm data, 87

memory operations L4450A, 216 memory storage, 69

monitor mode

applicable instruments, 80

N

network connections private LAN, 19 site LAN, 20

network considerations, 17 non-sequential scanning

applicable instruments, 79

O

odometer, 98

operating conditions, 3, 66 operating environment, 2 overload fuse

L4451A, 224

P

paths (sequences) catalog, 95 defining, 89 deleting, 95 executing, 93 executing on alarm, 94 querying definition, 93 valid commands, 90

pattern matching L4450A, 221

performance test verification L4452A, 261

performance verification L4451A, 254

pinouts

L4400 User’s Guide 267