Remote Processing RPC-2350 - Manual (Page 79)

TECHNICAL INFORMATION
18-1
ELECTRICAL
TEC HNIC AL INF ORM ATION CHA PTER 18
CPU
Z8S180, 18. 432 MHZ clock
ELECTRICAL
Memory
CAMBASIC, 32K ROM (U1). Mapped per below.
Prog ram ming and data is 128K R AM (U2). Expand able
to 512K by installing part number 1039.
Program s are stored in 128K Flash type EPRO M (U3).
Expandable to 512K by installing part number 1301.
D i gi ta l I / O
T h e RP C - 2 35 0 ha s 48 d ig it a l I / O li ne s fr o m 82 C 5 5 I C .
24 are from J2, which is a general purpose port. The
other 24 are from J3. J3 has 8 high curre nt outputs,
which may be jumpered for inputs. Keypad port J5 uses
8 of the 24 lines. LCD display port J6 uses another 8.
The specifications below are for all digital I/O except for
the eight high current lines at J3.
Drive curr ent 2.5 mA . maximum per line,
sink or source. TTL
compatible.
Output low voltage 0.45V m ax at 2.5 mA , 1V
max at 15 mA. for opto rack.
Output high v olts 2.4V m inimum, sink or source
at rated cu rren t.
All digital input lines are TTL compatible.
High cu rrent ou tput at J3
8 of the 24 lines can drive up to 500 mA. at 50V. Refer
to CHAPTER 6, D IGITAL AND OPTO PORTS for
limitations.
Analog input(A/D)
Channels:
8
Ranges: 0-5V, ±2. 5V
Resolution: 12 bits (4096 counts)
Accuracy: ±3 counts + 3 counts offset
Type: Single ended or pseudo differential
Conversion time: 500 m icro-seconds in CAM BASIC
Analog voltage output(D/A) (option)
Channels:
2
Ranges: 0-5V, ±5V, 0-10V
Resolution: 12 bits (4096 counts)
Accuracy: ±3 counts + 3 counts offset
Cur rent outpu t: 5 mA. for accuracy
Settling time: 2 micro-seconds
4-20 mA. output(option)
Channels:
2 (each requires its own D/A ),
non-isolated
Input voltage: 12V to 30V or use on c ard supp ly
(
. 15V available)
Keypad input
10 lines accept a 16 to 24 position matrix keypad.
S c an n in g an d de b ou n ce p er f or m e d i n C A M B A SI C .
Uses 8 lines from J3. 24 position uses additional 2 lines
from J3.
Serial ports
Two RS-232D serial ports. COM1 has TxD and RXD
only. C OM2 also has RTS and C TS lines.
Prog ram mable ba ud rates fr om 600 to 3 8.4 K, 7 or 8 data
bits, par ity even, odd , or none, 1 or 2 stop bits.
F l as h EP R O M
Accepts Atmel 29C010A , 29C 040A or equivalent
P E PR O M.
Size:128K (29C010A) or 512K (29C040A)
Speed:120ns or faster.
Watchdog timer, reset
Watch dog timer resets card for 150 ms minimum when
enabled. Push button reset included.
Input power
+ 5VDC ±5% at 375 ma.
+ 12V at 250 mA. (RPC-2350G)
Current draw for 7-30V input depends upon applied
voltage. 7V supply draws more current (about 420 mA)
than 12V (about 200 ma).
Current consumption does not include any opto-modules
or other acc essories.
Output power
+ 5V at P2: 750 mA. with 7 to 30V input at “7-30V”
terminal on P2, W8 jumpered.
±12V at J7 Up to 40 mA. @ + 12, 20 mA. @ -12V
Note: Subtract any curr ent used by analog
outputs.