Terminal Diagrams - Siemens SIMATIC S5 CP 523 Manual

Hardware Installation
3.4

Terminal Diagrams

This section contains typical terminal diagrams for connecting the following:
• A printer (PT 88)
• A point-to-point connection (data terminal equipment DTE)
- CP 523 to CP 523
- CP 523 to CPU 944
• Modem link (data communications equipment DCE)
3.4.1 Terminal Diagrams for Print Mode
The CP 523 assumes a printer with an RS-232-C (V.24) or TTY interface as the peripheral device.
CP 523 (passive TTY) to PT 88 (active TTY) without BUSY signal
CP 523
Figure 3-6. Pin Assignments for CP 523 (Passive TTY) to PT 88 (Active TTY) without BUSY Signal
CP 523 (passive TTY) to PT 88 (active TTY) with BUSY signal
Printer setting: Printer not ready to receive = no current
CP 523
Figure 3-7. Pin Assignments for CP 523 (Passive TTY) to PT 88 (Active TTY) with BUSY Signal
3-8
TTY OUT+ (10)
TTY OUT - (12)
Shield (24)
Shield (25)
TTY OUT+ (10)
TTY OUT - (12)
Shield (24)
Shield (25)
TTY IN+ (6)
TTY IN - (8)
PT 88
(10) TTY IN –
(9) TTY IN+
(1) Shield
PT 88
(10) TTY IN -
(9) TTY IN+
(1) Shield
(21) TTY OUT -
(18) TTY OUT+
CP 523
20 mA
20 mA
20 mA
EWA 4NEB 811 6044-02a