EPS200 Rear Panel
RS-232 Serial Interface. The RS-232 serial interface is a 9-pin,
D-style
subminiature female connector, located on the rear panel. All serial
communications
meet RS-232C requirements. The baud rate is fixed at 9600 baud. Data length
is 8 bits,
no parity and one stop bit is required. Modem control lines, such as RTS
and CTS, are
not provided. No handshaking protocol (such as XON and XOFF)is supported.
The host
system must delay data transmission to avoid overflowing the EPS200 serial
buffer.
When uploading ASCII text programming files, use a 100 millisecond line-to-line
delay.
EPS200 Serial Interface Connector
| Pin |
Description |
Direction |
| 2 |
Transmit Data |
Output |
| 3 |
Receive Data |
Input |
| 5 |
Common |
|
Digital/Analog Remote Interface. The digital and analog interface
is a 15-pin, D-style subminiature female connector, located on the rear
panel.
The remote high voltage go on, analog setpoint, clamp is up, clamp is down,
and alarm outputs are contained in this connector.
EPS200 Remote Interface Interface Connector
| Pin |
Description |
|
Direction |
| 1 |
HV go on (-) |
|
Input |
| 2 |
HV analog setpoint |
|
Input (0-5V scale = 0-1000 VDC) |
| 3 |
HV go on (+) |
|
Input |
| 4 |
+12 VDC (current limited) |
|
Output |
| 5 |
Analog common |
|
|
| 6 |
Measured HV output |
|
Output (0-5V scale = 0-1000 VDC) |
| 7 |
HV is on/Clamp is active (down) |
|
Output (Active low to pin 10) |
| 8 |
HV is off/Clamp is inactive (up) |
|
Output (Active low to pin 10) |
| 9 |
Alarm output |
|
Output (Active low to pin 10) |
| 10 |
Digital common |
|
|
| 11 |
Address bit common |
|
|
| 12 |
Address bit 0 |
|
(reserved) |
| 13 |
Address bit 1 |
|
(reserved) |
| 14 |
Address bit 2 |
|
(reserved) |
| 15 |
Address bit 3 |
|
(reserved) |
Analog I/O (pins 2 and 6) is configured for 0-5 VDC single-ended operation.
Consult
the factory for applications that require a 0-10 VDC or bipolar interface.
Pins 5 and 10 are not tied together internally. All digital I/O should be
referenced
to pin 10 and all analog I/O should be referenced to pin 5. An external
common
connection between pins 5 and 10 will not alter the performance of the
EPS200
Pins 1 and 3 are optically isolated from DC power and DC common. A simple
remote
control interface can be accomplished by connecting pins 3 and 4 together
and
connecting pin 1 to DC common, via a switch, to set the high voltage go on
active
via the digital interface. |
