Sigma C4 manual 114

QC Query last command	. . . . . . 64
QE, QEA Query error/status string	. . . . . . 62
QF, QFA Query setup parameter value	. . . . . . 59
QN Query controller serial number	. . . . . . 57
QR	. . . . . . 58
QR Query controller temperature range	. . . . . . 58
QS	. . . . . . 58
QS Query setpoint & control probe number	. . . . . . 58
QU Quit controlling	. . . . . . 73
QV	. . . . . . 57
QV Query firmware version	. . . . . . 57
RA, RAF Ramp to temperature	. . . . . . 71
RE, REA - Request error byte	. . . . . . 61
RS, RSA - Request status byte	. . . . . . 61
SC Set probe correction	. . . . . . 66
SD Set UUT Temperature differential limits	. . . . . . 69
SI Select immediate mode	. . . . . . 70
SL Set UUT temperature Limits	. . . . . . 69
SP Select program mode	. . . . . . 70
Summary	. . . . . . 56
TO & TF Turn aux/power control port on & off	. . . . . . 72
UP Write current parameters to NV memory	. . . . . . 69
WP Set PID constants	. . . . . . 67
Communications port select	. . . . . . 79
Compressor
CO & CF Turn the refrigeration port on & off	. . . . . . 72
Compressor control	. . . 80, 98
Connections, rear panel	. . . . . . 22
Cryogenic boost control	. . . . . . 52
DL Delay (dwell interval)	. . . . . . 72
DS - Disable SRQ (Status request mode)	. . . . . . 64
Dwell time	. . . 43, 72
EEPROM replaces BBSRAM	. . . . . . 12
EIA-232 port	. . . 10, 55
connector	. . . . . . 22
EIA-232 settings
EIA-232 settings	. . . . . . 79
Error byte	33, 61, 75
Error message table	. . . . . 109
Error/status string	. . . 33, 75
Bit definitions	. . . . . . 77
QE, QEA Query error/status string	. . . . . . 62
ES - Enable SRQ (Status request mode)	. . . . . . 64
Fahrenheit temperature scale	. . . 28, 80

114 C4 Manual Rev 7.5.2