The Allen-Bradley / Rockwell Automation 1771-OFE1 Analog Output houses 4 isolated (1000V) differential outputs. Voltage range of 1771OFE1 is 1...5V DC, 0...10V DC, -+10V DC. No external power is required. Resolution is 12 bits and channel update is 8.0ms to 4 channels (BCD); 1.6ms to 4 channels (natural binary). Wiring arm is the 1771-WC. Date format for 1771-OFE1 is natural binary or BCD scaled to -+9999.