EPS RS 232 - Status Word and ESR Register

Ext. Control: Computer
26
SH1
Source Handshake function available
AH1
Acceptor Handshake function available
T6
Talker, Serial Poll, end addressing by MLA
L4
Listener function, end addressing by MTA
SR1
Service request available
RL1
Remote/Local function available
PP0
No parallel poll function
DC1
Device clear function available
DT0
No trigger function
C0
no controller function
E1
Open-collector driver
Status Word
The status word can be read with the command <STB> or <*STB?> . Return value: STB,xxxxxxxx
Table: Reading the status word
Bit Function
D7
n/a
D6
SRQ is set, if SRQ was requested
D5
ESB is set, if a byte was set within the SES
register
D4
MAV is set, if a message is available
D3
n/a
D2
see table
D1
see table
D0
see table
Table: Error messages
D3 D2 D1 D0 Error
0
0
0
1
Syntax
0
0
1
0
Command
0
0
1
1
Range
0
1
0
0
Unit
0
1
0
1
Hardware
0
1
1
0
Read
ESR-Register - Event-Status-Register
The ESR register can be read using the command <*ESR?> . Return value: ESR,xxxxxxxx. After the query, the ESR
register is deleted.
Bit Function
D7
Power on
D6
Command error
D5
User request
D4
Execution error
D3
Device dependent
error
D2
Query error
D1
Request control
D0
Operation complete
RS232 INTERFACE
The connection of the RS232 interface is carried out with a 9pin sub D connector.