SNAP PAC S-Series User’s Guide
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Serial Communication
SNAP-PAC-S1
RS-232 serial: Two RS-232 serial ports (one DB-9 and one pluggable connec-
tor); one port has full handshaking. PPP is supported only on port 0. Buffer
size: 512 bytes each for RX and TX.
RS-485 serial: One RS-485 serial port (pluggable connector); two-wire
RS-485; optional
mistic
signal interrupts. Range (serial multidrop): 32 stations
maximum on a segment (including PC, controller, and I/O units); up to 3000 ft
(914 m) on a segment. Buffer size: 512 bytes each for RX and TX.
SNAP-PAC-S2
Four serial ports that can be used as general purpose ports or for serial I/O
units; each port is software configurable as either RS-232 (Tx, Rx, COM, DTR,
DCD, RTS, CTS) or as RS-485 (2-wire, 4-wire, optional termination, optional
biasing); optional
mistic
signal interrupts. Buffer size: 512 bytes each for RX
and TX.
Power requirements
8–32 VDC ±0.5, 11.3 VA maximum
(SNAP-PAC-S1 controllers with serial numbers below 500,000 use 8–24 VDC)
Operating temperature
Storage temperature
Humidity
-20 °C to 60 °C
-40 °C to 85 °C
0% to 95% relative humidity, non-condensing
Software
PAC Project Basic
PAC Project Professional
RESTful API**
Includes programming, HMI software, and configuration software; included
with purchase of controller.
PAC Project Basic plus OPC 2.0-compliant OPC server, OptoControl strategy
and OptoDisplay project importing, support for serial
mistic
I/O units, and
Ethernet link redundancy support.
Use HTTPS to access data (read/write or read-only) from controller tags using
your chosen programming language. Data returned in JSON. More informa-
tion at
developer.opto22.com
Number of charts that can
run simultaneously
32
Other features
Multiple protocol support including TCP/IP, HTTP/HTTPS, FTP, SNMP v2.0c
(with firmware 8.2a), Modbus/TCP, EtherNet/IP™, and OptoMMP™
Real-time clock
FTP server/client with file system (in RAM and in removable storage)
Ethernet link redundancy or network segmenting
Agency certifications
(-W models only) U.S., FCC Part 15 Subpart C; Canada, IC RSS-210
(-FM models only) Factory Mutual approved
All models except -W: CE, RoHS, DFARS
-W models: DFARS
Warranty
30 months from date of manufacture
* Requires a Wired+Wireless model (SNAP-PAC-S1-W or SNAP-PAC-S2-W)
** Requires firmware R9.5a or higher
