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Processor
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266 MHz 32-bit ColdFire® 5475 with integrated floating-point unit (FPU)
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Memory
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SNAP-PAC-S1 and SNAP-PAC-S2
Total RAM: 32 MB
Total RAM for PAC Control Strategies: 16 MB
Battery-backed RAM: 8 MB
RAM File Storage: 2.5 MB
Flash File Storage: 4 MB
SNAP-PAC-S1-W and SNAP-PAC-S2-W
Total RAM: 128 MB
Total RAM for PAC Control Strategies: 64MB
Battery-backed RAM: 8 MB
RAM File Storage: 16 MB
Flash File Storage: 4 MB
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Removable storage
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(Models with manufacture dates of June 2014 and newer. Requires firmware R9.4a or higher and loader R6.1a or higher) MicroSD card slot: supports microSD or microSDHC cards to 32 GB.
(Models with manufacture dates of November 2008 through May 2014 with firmware R8.4 or higher) McroSD card slot: supports microSD cards up to 2 GB.
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Backup battery
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SNAP-PAC-S1s with serial number 625654 or higher and all SNAP-PAC-S2s: Rechargeable (recharges whenever the brain has power), 1-year power-off data retention (replacement part number: SNAP-PAC-BATTERY-ML2430).
SNAP-PAC-S1s with serial number 625653 or lower: User-replaceable 3.6-volt TL 5242 /W lithium, 10-year minimum power-off data retention (replacement part number: G4BATT32)
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Ethernet Communication (wired) to host and I/O
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Two independent 10/100 Mbps Ethernet network interfaces (RJ-45 connectors). Each interface has a separate IP address (separate subnet).
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Ethernet Communication (wireless)*
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Wireless LAN interface with separate IP address.
Topologies: Infrastructure, Ad-Hoc
Security: 802.11i; AES - Compatible with WPA2 Personal, TKIP - Compatible with WPA Personal, WEP. Note: TKIP/AES security is not supported in Ad-Hoc mode.
Frequency 802.11a: 5.180–5.240 GHz, 5.745–5.825 GHz
Frequency 802.11b/g: 2.412–2.472 GHz, 2.484 GHz
Transmit Power: 15 dBm maximum
Antenna Connector: Reverse polarity SMA (RP-SMA or RSMA)
Roaming: Supported within an SSID (Service Set Identifier) only
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Serial Communication
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SNAP-PAC-S1
RS-232 serial: Two RS-232 serial ports (one DB-9 and one pluggable connector); 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.
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Power requirements
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8–32 VDC ±0.5, 11.3 VA maximum
(SNAP-PAC-S1 controllers with serial numbers below 500,000 use 8–24 VDC)
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Operating temperature
Storage temperature
Humidity
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-20 °C to 60 °C
-40 °C to 85 °C
0% to 95% relative humidity, non-condensing
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Software
PAC Project Basic
PAC Project Professional
REST API
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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 information at developer.opto22.com
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Number of charts that can run simultaneously
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32
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Other features
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Multiple protocol support including TCP/IP, 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
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Agency certifications
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(-W models only) U.S., FCC Part 15 Subpart C; Canada, IC RSS-210
(-FM models only) Factory Mutual approved
All models except -W models: CE, RoHS, DFARS
-W models: DFARS
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Warranty
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30 months from date of manufacture
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* Requires a Wired+Wireless model (SNAP-PAC-S1-W or SNAP-PAC-S2-W)
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