现在的大多PLC都具有高速计数器功能，不需增加特殊功能单元就可以处理频率高达几十或上百KHz的脉冲信号，而切纸机对进给系统的精度和响应速度要求不是很高。可以通过对切纸机进给系统相关参数的计算，合理的选用编码器，让脉冲频率即能在PLC处理的范围内又可以满足进给的精度要求。在进给过程中，让PLC对所接收的脉冲数与设定数值进行比较，根据比较结果驱动相应的输出点对变频器进行输出频率的控制，实现接近设定值时进给速度变慢，从而减小系统惯性，达到**定位的目的。另外当今变频器技术取得了长足的发展，使电机在低速时的转矩大幅度提升，从而也保证了进给定位时低速推进的可行性。
随着机电一体化技术的发展，对系统的可靠性要求越来越高，PLC具有控制可靠、组态灵活、体积小、功能强、速度快、扩展性好、维修方便等特点，在机床电气控制中获得了广泛的应用。
HP/Agilent 85990A Multicarrier Signal Generator, 5 to 1100MHz, 75 ohm
Tektronix ADA400A, ADA-400A Tektronix ADA400A Differential Preamplifier
Boonton 952011 Kit Probe Kit
HP/Agilent 54001A Probe 1 GHz For 54100 Series
HP/Agilent 10430A 500MHz Probe
HP/Agilent 10434A 10:1, 1m Miniature Passive Probe
HP/Agilent 1144A 800MHZ Active Probe
HP/Agilent 1152A 2.5ghz,0.6pF Active Probe
HP/Agilent 11807A -100 HP 8920A/21A RF Communications System Support Test Software
HP/Agilent 11807B-044 HP 8921A/D RF Communications System Northern P Series Cell Site Test Software Option 044 Rev. B.01.20
HP/Agilent 11807B-H04 HP 8921A/D RF Communications System Northern Telecom DRU/TRU Test Software Option H04 Rev B.01.05
HP/Agilent 16089B Kelvin Clip Leads
HP/Agilent 41941A Impedance Probe Kit
HP/Agilent 44492A Reed Relay Multiplexer Assembly input Characteristics:
HP/Agilent 5060-3351 Option 760 PCA Relay for the 66100 series modules
HP/Agilent 54007A RF & Lightwave Accessory Kit
HP/Agilent 54701A 2.5-Ghz, 0.6-pF Active Probe
HP/Agilent 66001A Modular Power System Keyboard
HP/Agilent 81000VA Optical Interface ST Connector
HP/Agilent 85036B 75ohm type N Calibration Kit
HP/Agilent 85131D Semi-Rigid Cable Set, 3.5 mm to 3.5 mm
HP/Agilent 85620A Mass Memory Module
HP/Agilent 85702A 128K BYTE RAM Card
HP/Agilent 85902A Burst Carrier Trigger
HP/Agilent E4444A Benchlink Spectrum Analyzer software version A.01.06 for Windows 95, 98, & NT
Tektronix 012-1221-00 2 Meter Cable For Sampling Heads
Tektronix 1101 Probe Power Supply
Tektronix 1101A Probe Power Supply
Tektronix 1102 Probe Power Supply
Tektronix K420 Tektronix K420 Oscilloscope Cart
Tektronix P6139A Tektronix P6139A 501 MHz, 10X Probe Accessories/Probes
Tektronix P6243 Tektronix P6243 Probe
Tektronix P6245 Tektronix P6245 1.5Ghz FET Probe
Wavetek 15271 Power Detector, 1MHz-26.5GHz
Wiltron 34RKNF50 Precision Ruggedized K (m) to N (f) Adapter, 20 GHz
WILTRON 560-97N50 VSWR AutoTester
Racal Instruments 11-1572 SENSING HEAD
HP/Agilent 85723A DECT Measurement personality card
General Microwave N436A 18GHz Peak Power Sensor sold only with GM 478A Meter
Anritsu MA2481A Universal Power Sensor, 10 MHz to 6 GHz, 50 Ohm, -60 to +20dBm
HP/Agilent 11612A Bias Network, 45 MHz to 26.5 GHz
HP/Agilent 16442A Test Fixture for use and sold only with the 4155 or 4156.