Yokogawa 212 Heat Calculator - Manual (Page 71)

7.6 TERMINAL DESIGNATIONS
Terminal numbering is in accordance with international standards.
Terminal Description
1 + Feed line RTD0 Current (+)
2 - Feed line RTD0 Current (-)
3 + Return line RTD1 Current (+)
4 - Return line RTD1 Current (-)
5 + Feed line RTD0 Input (+)
6 - Feed line RTD0 Input (-)
7 + Return line RTD1 Input (+)
8 - Return line RTD1 Input (-)
10 Flow Signal Input
11 Flow Signal Reference
16 + Pulse Output (+)
17 - Pulse Output (-)
24 Meter-bus or RS485 (-)
25 Meter-bus or RS485 (+)
50 + 12 Volts Supply (+)
51 - 12 Volts Supply (-)
52 + Relay 0 (+) dc Voltage Only or 4-20mA (+)
53 - Relay 0 (-) dc Voltage Only or 4-20mA (-)
54 + Relay 1 (+) dc Voltage Only
55 - Relay 1 (-) dc Voltage Only
58 Shields
Installation 69