User`s guide

Index
L4400 User’s Guide 267
L4433A simplified schematic (two-wire
mode), 120
L4433A terminal block (one-wire
mode), 126
L4433A terminal block (two-wire
mode), 122
L4437A
connector pinouts, 133
power-fail jumper, 128
snubber circuitry, 134
terminal block, 134
L4437A example programs, 131
L4437A hardware description, 132
L4437A SCPI command summary, 130
L4437A simplified schematic, 132
L4437A temperature sensor, 128
L44387 instrument overview, 128
L4445A
channel numbering, 143
channel pairing, 147
continuous drive mode, 146
default and reset states, 152
description, 138
dimensions, 187
distribution boards, 154
drive modes, 145
dual drive mode, 147
example configurations, 139, 140
execution times, 149
I/O Access LED, 140
LED position indicators, 149
open-collector drive mode, 145
pulse drive mode, 148
recovery time, 148
settling time, 148
single drive mode, 146
switch verification, 149
TTL drive mode, 145
L4445A example programs, 188
L4445A SCPI command summary, 136
L4450A
buffered input, 212
buffered output, 210
byte ordering, 214
channel drive voltage, 202
channel numbering and width, 200
channel polarity, 202
channel threshold, 202
channel width, 202
clock output, 218
connector pinouts, 218
counter operations, 216
deleting traces from memory,
212
external pullups, 202
frequency measurements, 217
handshake line drive mode, 204
handshake line output voltage
level, 204
handshake line polarity, 204
handshake line threshold, 204
handshaking, 203
handshaking digital data, 203
initiated measurement mode, 217
interrupt lines, 213
memory operations, 210
pattern matching, 215
reading digital data, 200
synchronous handshake mode, 205
totalizer mode, 216
writing digital data, 201
L4450A digital I/O operations, 200
L4450A hardware description, 199
L4450A SCPI command summary, 192
L4451A
analog output adjustments, 257
analog output verification test, 255
calibration count, 251
calibration interval, 248
calibration message, 251
calibration procedure., 253
calibration security, 250
calibration time, 249
connector pinouts, 232
example programs, 228
overload fuse, 224
performance verification, 254
remote sensing, 224
security code, 250
sense terminals, 224
simplified block diagrams, 231
L4451A hardware description, 224
L4451A SCPI command summary, 226
L4452A
analog output, 236
calibration count, 251
calibration interval, 248
calibration message, 251
calibration procedure, 261
calibration security, 250
calibration time, 249
connector pinouts, 244
DAC output adjustment, 262
DAC output verification test, 261
digital I/O, 236
example programs, 241
hardware description, 236
performance test verification, 261
security code, 250
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
LAN settings
editing using the Web interface, 30
latch mode (alarms), 88
LED descriptions, 48
LED position indicators
L4445A, 149
limits
alarms, 84
linking multiple modules, 116
locating instruments, 22
lost calibration code, 250
M
manual scanning, 73
master module, 138
measurement functions
L4421A, 100
memory
stored states, 96
viewing alarm data, 87
memory operations
L4450A, 210
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, 215
performance test verification
L4452A, 261
performance verification
L4451A, 254
pinouts
L4421A, 107
L4433A (one-wire mode), 125